The document discusses sustainable biomes and how human activity has led to significant changes in Earth's biomes over the past 300 years. It notes that over half of the world's livable land area has been converted from natural biomes like forests and grasslands to farmland and housing to support human needs. This conversion of biomes is still expanding and has caused more environmental change than any other period in Earth's history. The document also explores how biomes produce resources humans rely on and examines issues like sustainability and food security as human populations increase.
This document summarizes the main biomes (regions) of the world, which include polar ice caps, tundra, forests, grasslands, deserts, and aquatic biomes. It provides details on the defining characteristics, climates, vegetation, and animals found in each biome type. Some of the specific biomes mentioned include boreal forests, taiga, temperate deciduous forests, prairies, steppes, savannas, rainforests, wetlands, estuaries, and oceans.
The document summarizes the major biomes and ecological zones of Earth. It describes 13 different environments: biosphere, lithosphere, hydrosphere, atmosphere, temperature deciduous forest, coniferous forest, tropical forest, grassland, tundra, desert, inland waters, oceanic environments including rocky intertidal zone, rocky subtidal zone, nearshore soft sediments, deep-sea sediments, hydrothermal vents, and pelagic realm. Each environment is characterized by its climate, dominant plant and animal species, and ecological features.
This presentation provides an overview of geography and environmental geography. It defines geography as the study of the Earth and its features and divides it into two main branches: physical geography, which studies the world's physical characteristics, and human geography, which examines human-environment interactions. The presentation also outlines the five core themes of geography - location, place, movement, human-environment interaction, and regions. It describes environmental geography as the spatial study of relationships between humans and their social and natural environments. The scope of environmental geography includes environmental systems, management, and global issues. Studying environmental geography is important for environmental science as it aids in spatial analysis and understanding relationships between humans and the environment.
The document discusses the biosphere, which is defined as the global sum of all ecosystems and the zone of life on Earth. It originated from the work of Charles Darwin and Matthew Maury in the 1920s. The term "biosphere" was coined by geologist Eduard Suess in 1875 to refer to the place on Earth where life dwells. The biosphere concept is relevant to many scientific disciplines and examines the physical properties, levels of organization, and factors that affect the biosphere such as the distance between Earth and the sun and chemical and biological erosion.
This document discusses key topics in physical, human, and environmental geography. It covers physical geography including the atmosphere, water cycle, landforms, rocks and soil. It then discusses human geography including population geography, settlement geography, economic activities, communications, and transportation. Finally, it discusses environmental geography including natural resources, renewable and non-renewable resources, and how humans both positively and negatively impact the environment.
Deforestation in Bangladesh and its solution Hossian
This document discusses deforestation in Bangladesh. It notes that 50% of Bangladesh's forests have been destroyed in the last 20 years due to activities like agricultural expansion, logging, urbanization, and mining. Deforestation causes problems like heavy soil erosion, extinction of flora and fauna, global warming, and silting of rivers. Some solutions proposed are banning clear cutting of forests, requiring planted trees to replace cut trees for development, and curbing unnecessary felling of trees through laws and regulations.
1. There are various patterns of distribution for different species based on factors like habitat, geography, and climate. No two species have an identical distribution.
2. The causes of distribution patterns vary depending on the taxonomic level from broad families to specific genera.
3. Distribution patterns also vary depending on the spatial scale examined from global to local levels. Key factors that influence patterns include geological history, climate, food and habitat availability, competition, and human activities.
Present Status, Policy and Management of Biodiversity in BangladeshMd.Hafizur Rahaman
The document provides an overview of biodiversity in Bangladesh, including:
1) Bangladesh has a rich biodiversity due to its unique geographic location, including over 5,700 plant species and hundreds of animal species.
2) However, biodiversity in Bangladesh is diminishing due to threats like habitat loss, poaching, and overexploitation. Many species are now extinct or endangered.
3) Bangladesh's ecosystems include mangrove forests, hill forests, wetlands, and floodplains, but many of these ecosystems are degraded due to issues like encroachment, poor management, and lack of protection.
This document summarizes the main biomes (regions) of the world, which include polar ice caps, tundra, forests, grasslands, deserts, and aquatic biomes. It provides details on the defining characteristics, climates, vegetation, and animals found in each biome type. Some of the specific biomes mentioned include boreal forests, taiga, temperate deciduous forests, prairies, steppes, savannas, rainforests, wetlands, estuaries, and oceans.
The document summarizes the major biomes and ecological zones of Earth. It describes 13 different environments: biosphere, lithosphere, hydrosphere, atmosphere, temperature deciduous forest, coniferous forest, tropical forest, grassland, tundra, desert, inland waters, oceanic environments including rocky intertidal zone, rocky subtidal zone, nearshore soft sediments, deep-sea sediments, hydrothermal vents, and pelagic realm. Each environment is characterized by its climate, dominant plant and animal species, and ecological features.
This presentation provides an overview of geography and environmental geography. It defines geography as the study of the Earth and its features and divides it into two main branches: physical geography, which studies the world's physical characteristics, and human geography, which examines human-environment interactions. The presentation also outlines the five core themes of geography - location, place, movement, human-environment interaction, and regions. It describes environmental geography as the spatial study of relationships between humans and their social and natural environments. The scope of environmental geography includes environmental systems, management, and global issues. Studying environmental geography is important for environmental science as it aids in spatial analysis and understanding relationships between humans and the environment.
The document discusses the biosphere, which is defined as the global sum of all ecosystems and the zone of life on Earth. It originated from the work of Charles Darwin and Matthew Maury in the 1920s. The term "biosphere" was coined by geologist Eduard Suess in 1875 to refer to the place on Earth where life dwells. The biosphere concept is relevant to many scientific disciplines and examines the physical properties, levels of organization, and factors that affect the biosphere such as the distance between Earth and the sun and chemical and biological erosion.
This document discusses key topics in physical, human, and environmental geography. It covers physical geography including the atmosphere, water cycle, landforms, rocks and soil. It then discusses human geography including population geography, settlement geography, economic activities, communications, and transportation. Finally, it discusses environmental geography including natural resources, renewable and non-renewable resources, and how humans both positively and negatively impact the environment.
Deforestation in Bangladesh and its solution Hossian
This document discusses deforestation in Bangladesh. It notes that 50% of Bangladesh's forests have been destroyed in the last 20 years due to activities like agricultural expansion, logging, urbanization, and mining. Deforestation causes problems like heavy soil erosion, extinction of flora and fauna, global warming, and silting of rivers. Some solutions proposed are banning clear cutting of forests, requiring planted trees to replace cut trees for development, and curbing unnecessary felling of trees through laws and regulations.
1. There are various patterns of distribution for different species based on factors like habitat, geography, and climate. No two species have an identical distribution.
2. The causes of distribution patterns vary depending on the taxonomic level from broad families to specific genera.
3. Distribution patterns also vary depending on the spatial scale examined from global to local levels. Key factors that influence patterns include geological history, climate, food and habitat availability, competition, and human activities.
Present Status, Policy and Management of Biodiversity in BangladeshMd.Hafizur Rahaman
The document provides an overview of biodiversity in Bangladesh, including:
1) Bangladesh has a rich biodiversity due to its unique geographic location, including over 5,700 plant species and hundreds of animal species.
2) However, biodiversity in Bangladesh is diminishing due to threats like habitat loss, poaching, and overexploitation. Many species are now extinct or endangered.
3) Bangladesh's ecosystems include mangrove forests, hill forests, wetlands, and floodplains, but many of these ecosystems are degraded due to issues like encroachment, poor management, and lack of protection.
This is a biosphere powerpoint I've created for a middle school level science class. It's full of fun animated cartoons and facts on both aquatic and terrestrial biomes.
1. Biomes are defined as large regions characterized by distinct plant and animal life. The document discusses several major biomes including forests, grasslands, deserts, and aquatic biomes.
2. Each biome has unique abiotic factors like climate and soil that have shaped the adaptations of the plants and animals living there. For example, desert plants have small leaves or none at all to reduce water loss, while aquatic biomes range from freshwater to marine environments.
3. Many biomes are threatened by human activities such as deforestation, pollution, and climate change. Conservation efforts aim to protect biodiversity and restore degraded ecosystems.
The document discusses different types of forests in Bangladesh including tropical wet evergreen forests, tropical semi-evergreen forests, tropical moist deciduous forests, tidal forests, and planted forests. It also outlines several important forest-related laws in Bangladesh such as the Forest Act of 1927, the Brick Burning (Control) Act of 1989, the Bangladesh Private Forest Act of 1959, and the Bangladesh Wildlife (Preservation) Act of 1974. Finally, it lists some key national policies related to forests, the environment, land, water, agriculture, and coastal zones.
There are three main types of forests in Bangladesh: tropical evergreen/semi-evergreen hill forests located in Chittagong and Sylhet, tropical moist deciduous sal forests concentrated in central regions, and the largest mangrove forest in the world located in the Sundarbans. The hill forests cover 47% of the country's total forest area while sal forests have declined to 30% due to settlement. The Sundarbans mangrove forest, located in the southwest, is home to rich biodiversity and supports the livelihoods of 800,000 people through resources like wood, fish, and honey.
Climate like any other physical phenomena it is dynamic and not static.
In every part of the world one year, one decade or one century is different than the other.
The change does not only have academic important but its effects in all the forms of life.
Plants, animals, human beings change with changes of climate.
In general, all living species thrive under definite and limit conditions and any great deviation from that will leads to destruction and death of the species.
Ecology: Scientific study of interactions between organisms and their environments which includes Biotic Factors: (Living organisms) , Abiotic Factors: (Nonliving physical and chemical conditions of an environment).
What are the levels of the Ecology?
Ecology has Five Levels.
Individual organism: Single organism in an environment
Populations: Group of individual organisms of same species living in the same area
Communities: All of the organisms that inhabit a particular area make up a community, like coral reef and other organisms live around in the reef
Ecosystems: An ecosystem includes both the biotic and abiotic factors of an area
Biosphere:
Sum of all of Earth's ecosystems, it is an envelope of air, land, and water supporting all living things on Earth. It consists of both the atmosphere and ocean.
Ecologists investigate global issues in the biosphere, including climate change and its effect on living things
The effects have been most dramatic at high latitudes, where multiple processes contribute to decreased surface reflectivity
Changes in temperature are causing species to shift their natural ranges; however, those are unable to move in line with changing temperatures are being put at risk.
This document provides information about different biomes located around the world, including tundra, coniferous forest, deciduous forest, desert, grassland, savanna, and rainforest biomes. For each biome, it describes defining characteristics, locations where they can be found globally, common plant and animal species, and examples of specific biome locations in various regions including the Philippines, Asia, Europe, North America, South America, Africa, and Antarctica.
Tropical cyclones develop over warm tropical oceans and are low pressure storm systems characterized by strong winds and heavy rainfall. They form when moist air rises rapidly over warm ocean waters, condenses to form thunderstorms, and the Coriolis effect causes the storms to rotate. Tropical cyclones are categorized based on their wind speeds and can cause extensive damage through high winds, storm surges, and flooding. A notable example is the devastating 1970 Bhola cyclone in Bangladesh, which had wind speeds up to 115 mph and a 33 foot storm surge, resulting in 300,000 to 500,000 fatalities.
The document discusses resource conflicts between indigenous communities and governments/corporations in India. It provides historical context on colonial-era forest policies that alienated tribes from their traditional lands. Subsequent policies failed to recognize tribal rights, leading to current conflicts over mining, plantations, and tiger reserves. The Forest Rights Act of 2006 aimed to address this, but implementation has been problematic, fueling activism and the ongoing Maoist insurgency. Cases from Odisha, Chhattisgarh, Jharkhand, and Telangana illustrate persisting tensions.
1. This document provides sample essay questions on topics related to ecosystems and conservation. The questions assess understanding of topics like methods for recording ecosystem changes, impacts on the nitrogen cycle, the role of environmental impact assessments, and distinguishing between ecological concepts like succession and zonation.
2. The document outlines two reasons why societies may have differing perspectives on issues like global warming, including religious/cultural factors and levels of economic development. It also compares the roles of intergovernmental organizations and non-governmental organizations in conservation efforts.
3. Detailed answer schemes provide examples of concepts and frameworks that could be discussed for each question to receive full credit. These include describing ecological goods and services provided by specific ecosystems.
The Human-Environment Relationship: Key Concepts and ModelsSteve Zavestoski
Lecture delivered at ABV Indian Institute of Information Technology and Management, Gwalior, Madhya Pradesh, India, as part of HUMANS | ENVIRONMENT | DEVELOPMENT lecture series as U.S. Fulbright Specialist, 30 Jan to 12 March, 2014.
Mangroves are salt-tolerant plants found in tropical and sub-tropical coastlines that provide important environmental and socioeconomic benefits. They act as coastal buffers against storms and erosion. However, mangroves in Sri Lanka are threatened by pollution, development, and harvesting. Protecting mangroves requires limiting coastal development and runoff, reforestation efforts, and community education about their importance to ecosystems and livelihoods.
Human Ecology is the study and assessment of the mutual interconnections between people and their environments at multiple scales and multiple time frames [1]. The subject is informed by ecological and evolutionary theory in biology and by the predominant concepts of landscape and spatial relationships in geography; but recognizes that humans have gradually achieved partial ecological and geographical dominance through their culturally given but continually changing technology and social, economic, and political arrangements. Human ecology subsumes such specialized approaches to these relationships and links as cultural ecology, political ecology, geography, ecological anthropology, environmental sociology, environmental economics, environmental psychology, and environmental history [2].
6].
Habitat destruction occurs when a habitat is damaged or destroyed, reducing the environment's capacity to support the species living there. Key causes of habitat destruction include increasing food production, mining, forest fires, overgrazing, and urban development. The effects are widespread and include animal extinction, disruption of food chains, loss of resources, and increased pollution and climate change. Conservation efforts aim to protect habitats through limiting disruptive activities, monitoring environmental quality, and protecting coastal and marine areas. However, fully protecting the complex, variable environment remains a significant challenge.
Theodore Roosevelt was known as the "Conservationist President" who established the National Forest and Parks systems in the US to protect wildlife. Aldo Leopold developed the land ethic concept of viewing land as a community. John Muir founded the Sierra Club and convinced Roosevelt to make Yosemite a national park. Rachel Carson's book Silent Spring raised awareness of pesticide dangers like DDT and led to its ban. Thomas Malthus predicted that exponential population growth would outpace linear food production, leading to starvation. The National Environmental Policy Act of 1970 required assessing environmental impacts of construction projects. Earth Day was first celebrated in 1970 to raise environmental awareness.
The document discusses the biosphere and its major biomes. It describes how ecosystems were originally distributed based on climate and how each biome has adapted to different environmental conditions. It then provides details on several major biomes: tundra, taiga, coniferous and deciduous forests, tropical forests, and deserts. For each biome it highlights the location, climate, dominant plant and animal species, and key adaptations for survival.
This document discusses different types of species diversity. It defines species as a group that can mate and produce fertile offspring. Species diversity refers to the number and variety of life forms in an area. There are generalist species that can live in many environments and eat many foods, and specialist species that live in narrow niches and are more vulnerable to extinction. Native species evolved in a particular area, while nonnative species were introduced. Indicator species signal ecosystem damage, and keystone species have large impacts on environments despite small populations. Foundation species help create and reshape habitats for other organisms.
In this presentation contains three lessons all in one. The first lesson talks about the biomes of the world means landforms and vegetations in the earth including lesson objectives, a worksheet to solve, a summary of the lesson, and a funny ending. In the second lesson is about the Marine Ecosystem that talks about its ecosystem, the causes, and effects of Marine pollution, ocean zones, and habitats found under the water; this includes lesson objectives, a video, and summary. In the third lesson is about the water bodies of the earth except for the salty water that includes lesson objectives and summary.
The document defines key terms in ecology like biosphere, ecosystem, community, species, and populations. It describes the main subdivisions of the biosphere - lithosphere, hydrosphere, and atmosphere. It also explains the 8 major terrestrial biomes and the key characteristics of each biome like climate, vegetation. Food chains, food webs, and ecological pyramids are discussed as well as nutrient and water cycles within ecosystems.
This is a biosphere powerpoint I've created for a middle school level science class. It's full of fun animated cartoons and facts on both aquatic and terrestrial biomes.
1. Biomes are defined as large regions characterized by distinct plant and animal life. The document discusses several major biomes including forests, grasslands, deserts, and aquatic biomes.
2. Each biome has unique abiotic factors like climate and soil that have shaped the adaptations of the plants and animals living there. For example, desert plants have small leaves or none at all to reduce water loss, while aquatic biomes range from freshwater to marine environments.
3. Many biomes are threatened by human activities such as deforestation, pollution, and climate change. Conservation efforts aim to protect biodiversity and restore degraded ecosystems.
The document discusses different types of forests in Bangladesh including tropical wet evergreen forests, tropical semi-evergreen forests, tropical moist deciduous forests, tidal forests, and planted forests. It also outlines several important forest-related laws in Bangladesh such as the Forest Act of 1927, the Brick Burning (Control) Act of 1989, the Bangladesh Private Forest Act of 1959, and the Bangladesh Wildlife (Preservation) Act of 1974. Finally, it lists some key national policies related to forests, the environment, land, water, agriculture, and coastal zones.
There are three main types of forests in Bangladesh: tropical evergreen/semi-evergreen hill forests located in Chittagong and Sylhet, tropical moist deciduous sal forests concentrated in central regions, and the largest mangrove forest in the world located in the Sundarbans. The hill forests cover 47% of the country's total forest area while sal forests have declined to 30% due to settlement. The Sundarbans mangrove forest, located in the southwest, is home to rich biodiversity and supports the livelihoods of 800,000 people through resources like wood, fish, and honey.
Climate like any other physical phenomena it is dynamic and not static.
In every part of the world one year, one decade or one century is different than the other.
The change does not only have academic important but its effects in all the forms of life.
Plants, animals, human beings change with changes of climate.
In general, all living species thrive under definite and limit conditions and any great deviation from that will leads to destruction and death of the species.
Ecology: Scientific study of interactions between organisms and their environments which includes Biotic Factors: (Living organisms) , Abiotic Factors: (Nonliving physical and chemical conditions of an environment).
What are the levels of the Ecology?
Ecology has Five Levels.
Individual organism: Single organism in an environment
Populations: Group of individual organisms of same species living in the same area
Communities: All of the organisms that inhabit a particular area make up a community, like coral reef and other organisms live around in the reef
Ecosystems: An ecosystem includes both the biotic and abiotic factors of an area
Biosphere:
Sum of all of Earth's ecosystems, it is an envelope of air, land, and water supporting all living things on Earth. It consists of both the atmosphere and ocean.
Ecologists investigate global issues in the biosphere, including climate change and its effect on living things
The effects have been most dramatic at high latitudes, where multiple processes contribute to decreased surface reflectivity
Changes in temperature are causing species to shift their natural ranges; however, those are unable to move in line with changing temperatures are being put at risk.
This document provides information about different biomes located around the world, including tundra, coniferous forest, deciduous forest, desert, grassland, savanna, and rainforest biomes. For each biome, it describes defining characteristics, locations where they can be found globally, common plant and animal species, and examples of specific biome locations in various regions including the Philippines, Asia, Europe, North America, South America, Africa, and Antarctica.
Tropical cyclones develop over warm tropical oceans and are low pressure storm systems characterized by strong winds and heavy rainfall. They form when moist air rises rapidly over warm ocean waters, condenses to form thunderstorms, and the Coriolis effect causes the storms to rotate. Tropical cyclones are categorized based on their wind speeds and can cause extensive damage through high winds, storm surges, and flooding. A notable example is the devastating 1970 Bhola cyclone in Bangladesh, which had wind speeds up to 115 mph and a 33 foot storm surge, resulting in 300,000 to 500,000 fatalities.
The document discusses resource conflicts between indigenous communities and governments/corporations in India. It provides historical context on colonial-era forest policies that alienated tribes from their traditional lands. Subsequent policies failed to recognize tribal rights, leading to current conflicts over mining, plantations, and tiger reserves. The Forest Rights Act of 2006 aimed to address this, but implementation has been problematic, fueling activism and the ongoing Maoist insurgency. Cases from Odisha, Chhattisgarh, Jharkhand, and Telangana illustrate persisting tensions.
1. This document provides sample essay questions on topics related to ecosystems and conservation. The questions assess understanding of topics like methods for recording ecosystem changes, impacts on the nitrogen cycle, the role of environmental impact assessments, and distinguishing between ecological concepts like succession and zonation.
2. The document outlines two reasons why societies may have differing perspectives on issues like global warming, including religious/cultural factors and levels of economic development. It also compares the roles of intergovernmental organizations and non-governmental organizations in conservation efforts.
3. Detailed answer schemes provide examples of concepts and frameworks that could be discussed for each question to receive full credit. These include describing ecological goods and services provided by specific ecosystems.
The Human-Environment Relationship: Key Concepts and ModelsSteve Zavestoski
Lecture delivered at ABV Indian Institute of Information Technology and Management, Gwalior, Madhya Pradesh, India, as part of HUMANS | ENVIRONMENT | DEVELOPMENT lecture series as U.S. Fulbright Specialist, 30 Jan to 12 March, 2014.
Mangroves are salt-tolerant plants found in tropical and sub-tropical coastlines that provide important environmental and socioeconomic benefits. They act as coastal buffers against storms and erosion. However, mangroves in Sri Lanka are threatened by pollution, development, and harvesting. Protecting mangroves requires limiting coastal development and runoff, reforestation efforts, and community education about their importance to ecosystems and livelihoods.
Human Ecology is the study and assessment of the mutual interconnections between people and their environments at multiple scales and multiple time frames [1]. The subject is informed by ecological and evolutionary theory in biology and by the predominant concepts of landscape and spatial relationships in geography; but recognizes that humans have gradually achieved partial ecological and geographical dominance through their culturally given but continually changing technology and social, economic, and political arrangements. Human ecology subsumes such specialized approaches to these relationships and links as cultural ecology, political ecology, geography, ecological anthropology, environmental sociology, environmental economics, environmental psychology, and environmental history [2].
6].
Habitat destruction occurs when a habitat is damaged or destroyed, reducing the environment's capacity to support the species living there. Key causes of habitat destruction include increasing food production, mining, forest fires, overgrazing, and urban development. The effects are widespread and include animal extinction, disruption of food chains, loss of resources, and increased pollution and climate change. Conservation efforts aim to protect habitats through limiting disruptive activities, monitoring environmental quality, and protecting coastal and marine areas. However, fully protecting the complex, variable environment remains a significant challenge.
Theodore Roosevelt was known as the "Conservationist President" who established the National Forest and Parks systems in the US to protect wildlife. Aldo Leopold developed the land ethic concept of viewing land as a community. John Muir founded the Sierra Club and convinced Roosevelt to make Yosemite a national park. Rachel Carson's book Silent Spring raised awareness of pesticide dangers like DDT and led to its ban. Thomas Malthus predicted that exponential population growth would outpace linear food production, leading to starvation. The National Environmental Policy Act of 1970 required assessing environmental impacts of construction projects. Earth Day was first celebrated in 1970 to raise environmental awareness.
The document discusses the biosphere and its major biomes. It describes how ecosystems were originally distributed based on climate and how each biome has adapted to different environmental conditions. It then provides details on several major biomes: tundra, taiga, coniferous and deciduous forests, tropical forests, and deserts. For each biome it highlights the location, climate, dominant plant and animal species, and key adaptations for survival.
This document discusses different types of species diversity. It defines species as a group that can mate and produce fertile offspring. Species diversity refers to the number and variety of life forms in an area. There are generalist species that can live in many environments and eat many foods, and specialist species that live in narrow niches and are more vulnerable to extinction. Native species evolved in a particular area, while nonnative species were introduced. Indicator species signal ecosystem damage, and keystone species have large impacts on environments despite small populations. Foundation species help create and reshape habitats for other organisms.
In this presentation contains three lessons all in one. The first lesson talks about the biomes of the world means landforms and vegetations in the earth including lesson objectives, a worksheet to solve, a summary of the lesson, and a funny ending. In the second lesson is about the Marine Ecosystem that talks about its ecosystem, the causes, and effects of Marine pollution, ocean zones, and habitats found under the water; this includes lesson objectives, a video, and summary. In the third lesson is about the water bodies of the earth except for the salty water that includes lesson objectives and summary.
The document defines key terms in ecology like biosphere, ecosystem, community, species, and populations. It describes the main subdivisions of the biosphere - lithosphere, hydrosphere, and atmosphere. It also explains the 8 major terrestrial biomes and the key characteristics of each biome like climate, vegetation. Food chains, food webs, and ecological pyramids are discussed as well as nutrient and water cycles within ecosystems.
Blue planet General science for education.pptxTheRealHeroes
This document is a submission from students at the University of Turbat on the topic of the "Blue Planet". It includes 3 paragraphs summarizing key points about Earth being a blue planet due to the large coverage of water, the gases in the atmosphere that support life, and factors that make Earth inhabitable including its distance from the sun and composition of the atmosphere.
The document defines biomes as large areas characterized by their climate, plants, and animals. It describes six major land biomes: temperate deciduous forest, coniferous forest, tropical rainforest, grasslands/savanna, deserts, and tundra. It also discusses two major aquatic biomes: marine ecosystems like coral reefs and freshwater ecosystems like wetlands. The objective is to understand the environmental conditions in these biomes and how the organisms within them depend on one another.
The document discusses the four major spheres of Earth: the atmosphere, biosphere, hydrosphere, and geosphere. It provides details on the composition and key features of each sphere. The atmosphere contains different layers and is mostly nitrogen and oxygen. The biosphere is the zone of life on Earth, structured through food chains. The hydrosphere contains all water on the planet, including oceans, lakes, ice, and vapor. The geosphere is the solid part of Earth from the core outward, including rocks and minerals. Earth system science studies how these spheres interact constantly, affecting one another.
The document discusses the four major spheres of Earth: the atmosphere, biosphere, hydrosphere, and geosphere. It provides details on the composition and key features of each sphere. The atmosphere contains different layers and is mostly nitrogen and oxygen. The biosphere is the zone of life on Earth, structured through food chains. The hydrosphere contains all water on the planet, including oceans, lakes, ice, and vapor. The geosphere is the solid part of Earth from the core outward, including rocks and minerals. Earth system science studies how these spheres interact constantly, affecting one another.
The document discusses the four major spheres of Earth: the atmosphere, biosphere, hydrosphere, and geosphere. It provides details on the composition and key features of each sphere. The atmosphere contains different layers and is mostly nitrogen and oxygen. The biosphere is the region that supports life through food chains. The hydrosphere contains all water on Earth, including oceans, lakes, ice, and vapor. The geosphere is the solid part of Earth, including rocks and minerals. Earth system science studies how these spheres interact, such as how volcanoes can impact the atmosphere, biosphere, and surrounding area.
This document provides an introduction to a unit on the terrestrial environment and the biosphere. It begins by outlining the objectives and overview of the unit. The unit will introduce the components of the biosphere, ecosystems and biomes, and interactions among the spheres. It then defines key terms like biosphere, environment, and discusses the three main spheres of the biosphere - the atmosphere, hydrosphere, and lithosphere. The document provides examples of terrestrial and aquatic biomes and discusses abiotic and biotic factors within ecosystems. It also explores interactions between the spheres through examples like the water cycle and food chains/webs.
Copy of Unit 6 Notes 1_ Climate_Biomes_Energy (1).pptxVandanaYadav400309
Soil is important as it provides nutrients for plant growth, acts as a habitat for many organisms, and stores water for plants. Soil quality depends on factors like its nutrient content, texture, and ability to retain water. Threats to soil include erosion from overgrazing, poor farming practices, and damage from human activities, which can lead to soil degradation and loss of fertile land. Conservation methods aim to protect soil quality and prevent erosion, such as contour plowing, terracing, no-till farming, crop rotation, use of windbreaks, and controlling water runoff. The type of soil that forms is influenced by properties of the parent rock material and climatic factors like temperature and precipitation.
This document provides information about weather, climate, natural environments, and natural resources.
1) It defines weather as short-term changes in air conditions for a place and time, while climate is the average weather conditions over a long period. Various factors like the sun, wind, water, and mountains influence weather and climate in different locations.
2) The document outlines the main climate zones of the world based on latitude and features of each, including tropical, dry, temperate, polar, and highland. It provides examples of climates within each zone.
3) Natural environments and ecosystems are discussed, noting how temperature, rainfall, and soil limit where plants and animals can live. The interconnection between
1. Biomes are determined by factors like temperature, rainfall, and sunlight which affect photosynthesis and net primary productivity. Different biomes like tropical rainforests, savannas, and tundra support characteristic plant life adapted to their climate.
2. Succession over time and zonation over environmental gradients cause changes in plant communities. Early successional "pioneer" species establish first, followed by later successional species that outcompete pioneers. Eventually a stable "climax" community develops.
3. Human impacts like deforestation and grazing can interrupt succession, maintaining early successional "plagioclimax" communities
The document discusses the four major spheres of Earth: the atmosphere, biosphere, hydrosphere, and geosphere. It provides details on the composition and key features of each sphere. For example, it notes the atmosphere contains different layers and is mostly nitrogen and oxygen, the biosphere is the zone of life on Earth structured through food chains, and the hydrosphere contains all water on the planet including oceans, lakes, and groundwater. The document also explains how Earth system science studies the interactions between these four spheres, like volcanic eruptions releasing gases into the air and affecting surrounding forests.
The document discusses the biosphere and the threats facing it. It defines the biosphere as the regions of Earth inhabited by living organisms, and notes there are 5 major biomes - aquatic, desert, forest, grassland, and tundra - which are further divided. It explains how the biosphere acts as a life support system and provides goods for humans. The major threats to the biosphere are deforestation, pollution, and climate change. Sustainable management of the biosphere's resources is important but faces economic, social, and environmental tensions.
The document provides information about the tundra biome. It describes the tundra as a vast, cold region characterized by treeless vegetation and permanently frozen subsoil. It exists in the northernmost regions of the world and at high elevations. Plants and animals in the tundra are adapted to harsh conditions like freezing temperatures, short growing seasons, and nutrient-poor soil. Examples are given of the specific locations and characteristics of the Arctic, Antarctic, and alpine tundra biomes.
This document provides an overview of ecosystems and biomes. It begins by defining an ecosystem as a group of organisms along with their physical environment. Ecosystems are made up of biotic (living) and abiotic (non-living) factors. Biodiversity, or the variety of species in an ecosystem, determines how resilient the ecosystem is to change. Ecosystems go through successional changes over long periods of time as the environment and communities change. There are three main types of terrestrial biomes - tropical, temperate, and high-latitude - determined by factors like latitude and climate. Aquatic ecosystems include freshwater, wetlands, estuaries, and marine environments. The document concludes with a discussion of levels
The document defines a system as having synergy, where the whole is greater than the sum of its parts, and emergent properties that arise from interactions between components. It provides examples of how Earth's living and non-living parts, like the atmosphere, hydrosphere, lithosphere and biosphere interact as a system. Each component works together in important ways to form the Earth system.
The document defines a system as having synergy, where the whole is greater than the sum of its parts, and emergent properties that arise from interactions between components. It provides examples of how Earth's living and non-living parts, like the atmosphere, hydrosphere, lithosphere and biosphere interact as a system. Each component works together in important ways to form the Earth system.
The document describes the local climate conditions and asks a series of questions about temperature, precipitation, snowfall, and factors that affect climate where the reader lives. It asks when the lowest and highest temperatures occur, how often it rains versus snows, and the heaviest snowfall remembered. It also asks the reader to define predation and competition based on their own experiences and give examples of each.
This document discusses factors that shape ecosystems and communities. It explains that climate is determined by factors like greenhouse gases, latitude, and ocean currents. Ecosystems are shaped by biotic interactions between organisms as well as abiotic factors like temperature and soil. Communities change over time through ecological succession as environments change and new species move in. The document outlines 10 major terrestrial biomes and describes 3 main types of aquatic ecosystems - freshwater, estuaries, and marine - which are classified based on factors like depth, flow, and salinity.
Monitor indicators of genetic diversity from space using Earth Observation dataSpatial Genetics
Genetic diversity within and among populations is essential for species persistence. While targets and indicators for genetic diversity are captured in the Kunming-Montreal Global Biodiversity Framework, assessing genetic diversity across many species at national and regional scales remains challenging. Parties to the Convention on Biological Diversity (CBD) need accessible tools for reliable and efficient monitoring at relevant scales. Here, we describe how Earth Observation satellites (EO) make essential contributions to enable, accelerate, and improve genetic diversity monitoring and preservation. Specifically, we introduce a workflow integrating EO into existing genetic diversity monitoring strategies and present a set of examples where EO data is or can be integrated to improve assessment, monitoring, and conservation. We describe how available EO data can be integrated in innovative ways to support calculation of the genetic diversity indicators of the GBF monitoring framework and to inform management and monitoring decisions, especially in areas with limited research infrastructure or access. We also describe novel, integrative approaches to improve the indicators that can be implemented with the coming generation of EO data, and new capabilities that will provide unprecedented detail to characterize the changes to Earth’s surface and their implications for biodiversity, on a global scale.
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...Joshua Orris
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
Earth Day How has technology changed our life?
Thinkers/Inquiry • How has our ability to think and inquire helped to advance technology?
Vocabulary • Nature Deficit Disorder~ A condition that some people maintain is a spreading affliction especially affecting youth but also their adult counterparts, characterized by an excessive lack of familiarity with the outdoors and the natural world. • Precautionary Principle~ The approach whereby any possible risk associated with the introduction of a new technology is largely avoided, until a full understanding of its impact on health, environment and other areas is available.
What is technology? • Brainstorm a list of technology that you use everyday that your parents or grandparents did not have. • Compare your list with a partner.
The modification of an existing product or the formulation of a new product to fill a newly identified market niche or customer need are both examples of product development. This study generally developed and conducted the formulation of aramang baked products enriched with malunggay conducted by the researchers. Specifically, it answered the acceptability level in terms of taste, texture, flavor, odor, and color also the overall acceptability of enriched aramang baked products. The study used the frequency distribution for evaluators to determine the acceptability of enriched aramang baked products enriched with malunggay. As per sensory evaluation conducted by the researchers, it was proven that aramang baked products enriched with malunggay was acceptable in terms of Odor, Taste, Flavor, Color, and Texture. Based on the results of sensory evaluation of enriched aramang baked products proven that three (3) treatments were all highly acceptable in terms of variable Odor, Taste, Flavor, Color and Textures conducted by the researchers.
2. Lesson Intention:
Success Criteria:
• Describe what the topic is based on due to images shown
• I can create open ended questions
• I can discuss the ‘Why’
We can develop geographically
centered questions and help plan
an inquiry
12. But before we can save the
world, we need to understand
the different types of habitats
on earth, especially the ones
that grow our food!
13. Pre-Test
You will be provided with a map and a
list of Biomes that are present all over
the world. (a map displaying countries
will be put on the smart)
Your task is to use your knowledge of
the world's environment and climates
and colour code the map with reference
to the Biomes List. You will have 20
minutes to complete this task to the
best of your abilities.
We will then come back to this task at
the end of the unit to see your
progress.
14.
15.
16. Lesson Intention:
Success Criteria:
• Describe what a biome is (definition)
• I can create a graphic organiser connecting biomes to countries, continents and characteristics.
• I can connect biomes to their characteristics e.g. climate
We can develop an
understanding of what a biome is
and distinguish the difference
between a terrestrial and aquatic
biomes.
17. Unit Overview
▪ Why are biomes located where they
are?
▪ What do biomes provide for humans?
▪ Will climate impact the productivity of
biomes?
▪ Can technology help our most
productive biomes?
▪ How can people get more from biomes?
▪ Can we guarantee food for the future
population?
▪ How can Australia help food security
worldwide?
Looking at this picture, what do you think a biome is?
18. Part 1: Investigating Biomes
A biome is a region that shares similar and distinctive climates, soils and vegetation. The tundra
lands biome, for example, is characterised by very cold climates, extreme winds and very
limited plant and animal diversity. In contrast, the tropical rainforest biome is characterised by a
warm and wet climate, highly weathered soils and thick, lush vegetation.
In this topic you will explore eight diverse biomes: polar lands, tundra, boreal (Taiga) forest,
mountain vegetation, temperate forest, grassland, desert and tropical rainforest.
19. What is a Biome?
▪ Geographers divide the Earth’s surface into a number of distinct regions.
▪ Each region has particular features that make it different from other regions.
▪ One region may be hot and rainy most of the time, for example, and another might be dry
and cold.
▪ This means the plant and animal life found there functions, adapts and interacts according to
the conditions of the region it inhabits.
▪ A biome is a region that shares similar and unique climates, soils and vegetation.
Copy heading
and dot points
20. Terrestrial or Land Biomes
▪ The terrestrial or the land biomes are categorized according to the climate conditions and the
vegetation of the region in which they are found.
▪ The vegetation also called the biological community of plants, animals, birds and other living
species that is stable and dominant after the numerous years of evolutionary development.
Tundra Desert
Savana Mountain Vegetation
Grasslands Rain forest
Polar region Tropical forest
Taiga (Boreal Forest) Northern Conifer Forest
Mediterranean scrub forest Temperate Deciduous Forest
21. We are going to
create a graphic
organiser and
use this map as
reference.
23. Characteristics
▪ Polar Lands: Antarctica
▪ Long cold winters
▪ Soil covered in ice
▪ Few plants can survive
▪ Animals such as Penguins, polar bears and arctic fox
▪ Tundra: North America
▪ Extreme cold climate
▪ Limited biodiversity (plants and animals)
▪ Boreal (Taiga) Forest: Russia + Siberia
▪ Extreme variations in climate (freezing to hot)
▪ Coniferous trees (do not drop leaves, soak up sun)
▪ Dry – limited rainfall
▪ Thin soil layer
▪ Grasslands: Every continent but Antarctica
▪ Vegetation is grass dominant
▪ Semi-arid climate
▪ Rainfall enough to support vegetation
▪ Often exploited for agriculture
▪ Desert: Australia
• Hot and dry
• Barren landscape with limited vegetation
• Less then 10 inches of annual rainfall
▪ Mountain Vegetation: Algeria
▪ Only exists in high altitudes 10000 feet ASL
▪ Summer 15 degrees – winter can be in minus
▪ windy with erratic weather patterns
24. Characteristics
▪ Tropical Forests: Queensland and Amazon
▪ High animal and vegetation biodiversity
▪ Typically called rainforests
▪ High rainfall – rains almost everyday
▪ They are primarily found within the Tropic of
Capricorn and the Tropic of Cancer.
▪ Can take up to 10min for a rain drop to hit the
ground due to dense foliage.
▪ Temperate Forest: Eastern Asia
▪ High levels of precipitation and humidity
▪ Deciduous trees – lose leaves in winter
▪ Thick nutrient soil
25. Lesson Intention:
Success Criteria:
• I can identify what an aquatic biome is
• I can describe where aquatic biomes are and name several
• I can accurately map aquatic biomes
We can identify what an aquatic
biome is, where they are located
and their characteristics.
26. 1. You will be split into your table groups
Each group will be given these three images
Think about what characteristics each biome has
2. Each group will share their ideas and a
mind map of each biome created by the
teacher on the board – each group must
contribute.
29. Aquatic Biomes
Aquatic biomes exist too. The world’s oceans, freshwater lakes, coral reefs and wetlands are
all examples of these biomes, which are dominated by water and the plants and animals that
call them home.
What are some
other examples
of aquatic
biomes?
30. Aquatic Biomes
The aquatic biome is the largest of all the biomes, covering about 75 percent of Earth's
surface. This biome is usually divided into two categories: freshwater and marine.
Fresh Water Marine
Lakes Ocean
Rivers Estuaries
Streams
Wetlands
31. Aquatic Biomes
Biome Example Characteristic
Create the following
table in your books
and use the
information from the
video on the next
slide to complete the
table.
33. Lesson Intention:
Success Criteria:
• I can list all 4 spheres that exist
• I can Identify how matter and energy change and cycle through the system as the
spheres interact
• I can analyse events and make a judgement about how that event impacts the sphere
We can understand the concept
of a ‘system’ as it applies to
earth.
36. Environmental Spheres
• Earth's natural environment is made up of 4
interacting spheres.
1. The solid part of the earth's crust (rocks and soil)
is known as the lithosphere.
2. All of earth's water bodies, including lakes,
rivers, streams, oceans, groundwater and ice
caps, are known as the hydrosphere.
3. The layer of gases surrounding the earth is
known as the atmosphere.
4. All living things, including plants and animals,
make up the biosphere.
Earth's four spheres can be identified in the photograph.
Copy into your
book
37.
38. Are Biomes and Ecosystems the Same?
A biome is different from an ecosystem. An ecosystem is the living and non living things in
an environment that result from the interaction of environmental spheres. A biome is a
specific geographic area notable for the species living there.
OR
A biome is the habitat or environment, while an ecosystem is the interaction between living
and non-living things within that environment.
Copy one
definition
39. Video on Biomes and Ecosystems
▪ https://www.youtube.com/watch?v=dTaWsFct32g&feature=youtube
_gdata_player 16 minutes
▪ Fill in the table on your worksheet as the video plays
40. Climate
Climate tells us the following about a place on the
earth:
▪ How much rain and snow falls. (precipitation)
▪ How hot or cold it is. (temperature)
▪ The number of hours that the sun shines (hours
of daylight).
▪ Climate is the weather a place has over a long
period of time (50 years). Weather may change
each day, but climate is the type of weather that
people expect for the region in which they live.
What is the difference between weather and climate?
41. Climate Graphs
Climate Graphs are very useful in comparing
the annual temperature and rainfall of places
around the world. They are very easy to plot
and read.
These simple steps should show you how
to draw one and then how to read it.
42. Steps to Plotting Climate Graphs
1. Plot on the rainfall as a column graph, coloured
blue.
2. Plot on the temperature as a line graph, coloured
red. The dots should be in the middle of the column.
3. Label the axes (rainfall, temperature and months)
and the heading (name of the place)
4. Find the total rainfall for the year (add all the bars
together)
5. Calculate the temperature range (the difference
between the highest temperature and the lowest
one). E.g Max 40C. Min -40C, range =80C
43. Climate Graphs
▪ The blue bars show
the precipitation by
month.
The precipitation
scale is on the left
▪ The red dots on the
curved line show the
temperature by
month. The
temperature scale is
on the right.
49. Transfer the data on these
graphs to complete your
own climate graph.
You will need to figure out
what the temperature
range and total
precipitation is for each
month.
50. Grasslands
• Grasslands are found where it is too dry for forests and too wet for
deserts.
• Also known as prairies (USA), steppes (Asia) or savannahs
(Africa).
• Much of the world’s food and fibre comes from plants and animals
that live in the world’s grasslands.
• Rice, wheat and corn (which are all grasses) provide the bulk of
the human population’s food, and many animals that are farmed to
provide meat and milk also live in the grasslands biome.
African Savannah
51. Grasslands
Much of Australia can be considered grassland and many of our native animals, such as
kangaroos, wallabies and wombats, thrive in this biome.
Australian grasslands
52. • Grasslands are dotted with
individual trees, providing
little cover for the wildlife that
live there.
• Animal survival adaptations:
• The zebra’s stripes make it
difficult for a predator to
see it clearly.
• The giraffe has evolved in
such a way that its long
neck allows it to source
food at the tops of trees.
• Many are nocturnal,
allowing them to avoid the
main heat of the day e.g.
prairie dog, barn owl and
grey wolf
Grassland Animals
US Prairie
Mongolian Steppe
53. Case Study: The American Prairie
It is estimated that 30 million bison lived in North
America in the 1500s. Within 400 years this had fallen to about
1000. In this photograph, taken in the 1870s, a pile of bison
skulls waits to be crushed for fertiliser. Worksheet
54. Hot
Deserts
High daytime
temperature
Low night time
temperature
Soils are dry
and salty- little
can grow
Vegetation is
stunted and
widely spaced
Plants and
animals are
highly adapted
to their
surroundings
55. Tropical Rainforests
▪ It is estimated that about half of all the plant, animal and insect species in the world live in
tropical forests.
▪ Many of these are among the wettest places on Earth and are therefore known as rainforests.
▪ They can be considered to make up the world’s richest biome and the abundance of life can
be astounding.
56. Tropical Rainforests
In Brazil, for example,
researchers found that a
single pond contained
more fish species than
exist in all of Europe’s
rivers.
57. Tropical Rainforests
In Peru, a single tree was
found to contain 43 ant
species; this is more than
the total number in all of
the British Isles.
58. Tropical Rainforests
One hectare of South
American rainforest may
contain over 750 different
types of trees, and one-
fifth of all of the world’s
birds live in the Amazon
rainforest.
59. Tropical Rainforests
▪ This explosion of life is due to the ideal
growing conditions that occur in the
tropics.
▪ These places experience the most stable
climate conditions on the planet with
virtually no seasonal changes in rainfall,
temperature or available sunlight
throughout the year.
▪ Most days are the same in the rainforest:
hot and wet. It rains virtually every day,
often in torrential downpours. The
temperature hovers between about
26°C and 32°C all year round.
Summarise into your books: Why do
rainforests produce such a large variety
of species?
60.
61. Describe the distribution of Eastern
Australia’s rainforests.
OR
Where do you find Australian rainforests?
Refer to particular places and states and use
compass directions in your answer.
Note: Rainforests
are also found in
the Northern
Territory and
Western
Australia
62. Rainforests have provided humans
with many resources for thousands
of years.
These resources are known as
ecosystem services .
The Gifts of the Rainforest
65. Video- Biomes That Produce Our Food
▪ https://www.youtube.com/w
atch?v=xp0Rz36hSzs
▪ 5 mins
▪ Think about how the land is
used and issues of
sustainability.
66. Design a World Tour- Extension
Activity
Design a world tour that includes at least one
visit to each type of biome. Research where
you will go using a map that shows the world
biomes, and then list the countries you would
visit on this tour. Include some of the activities
you might do at each place, based on the
biome’s climate and geographical conditions.
67. Changes to the Natural Environment
▪ The last ______ years have seen more ________ change to the
Earth’s _______ than in any other _______ in the Earth’s
________.
▪ Over _____ of the world’s ________ land area has been
_________ into __________ or housing to provide food,
________, shelter and _______ to the world’s people – and this
area is ___________.
▪ All around the world the _________ biomes of forests, _________,
tundra and even __________ are being converted into _________.
68. Revision- Quick Write
▪ For the 1st 2 weeks of the term, we have looked at an
overview of biomes.
▪ What have you learnt/what is your understanding of this
topic?
▪ Write down your answer on the paper provided.
70. Brainstorm
How can humans change
the environment for their
benefit?
“Man” 3 ½ minutes https://www.youtube.com/watch?v=WfGMYdalClU
Sample infographic:
71. Changes to the Natural Environment
▪ The last 300 years have seen more extensive change to the Earth’s
biomes than in any other period in the Earth’s history.
▪ Over half of the world’s liveable land area has been converted into
farmland or housing to provide food, fibre, shelter and fuel to the
world’s people – and this area is expanding.
▪ All around the world the natural biomes of forests, grasslands,
tundra and even deserts are being converted into farms.
Write
73. Source 1.24 shows the extent of biome
change around the world since 1700.
Answer these in your
book:
a Describe the change
to the amount of
wilderness areas from
1700 to 2000.
b Which 2 types of land
use have increased the
most? Why do you think
this is the case?
74. Changing Vegetation
Farmers make many changes to the natural environment in
order to grow crops and raise farm animals. The greatest
changes are made to the natural vegetation.
1. Forests are cut down, burnt and replaced with a
single plant species
2. Wetlands and swamps are drained
3. Vast areas of native grasses are replaced with
crops such as wheat and rice.
Copy the
heading and
numbered
points
75. For Against
“A small-scale farmer should have unlimited capacity to farm their own land for
the purpose of providing food for their family and community.”
OR
“A small-scale farmer should be able to do whatever they like with their own
land to grow food”.
1. Copy one of the quotes in your book.
2. Draw a table in your books like the one below.
3. Put in a few arguments for and against the statement above.
4. Underneath, write a paragraph-long answer where you give your own opinion of the
quote. Do you agree or disagree and why?
76. Changes to Forests
• Around the world about 5 million
hectares of forest is converted
for agricultural use every year:
an area about two-thirds the size
of Tasmania.
• Most of this change takes place
in tropical forests, particularly in
South America.
• In Australia, around 50 million
hectares of forests and
woodland have been cleared for
farming or affected by logging
since European settlement.
Read only
78. Changes to Forests
• In the developing world, there is a strong link
between deforestation and poverty.
• Millions of people who live below the poverty line
and struggle to meet their daily food
requirements are becoming small-scale slash-and-
burn farmers.
• Over time, as soil fertility declines, the farmers
and their animals move into a new patch of forest
and begin the process again.
• In Madagascar, for example, where 80 per cent of
the population lives in poverty, only 10 per cent of
the natural forest remains.
Describe the link between poverty and deforestation in your own
words.
79. What is Sustainability?
Sustainability addresses the ongoing
capacity of Earth to maintain all life.
Sustainable patterns of living meet
the needs of the present without
compromising the ability of future
generations to meet their needs.
80. Case Study: Greening the Deserts
Sustainable?
• In Saudi Arabia, sections of the desert have been transformed into
farmland for the purpose of growing crops.
• These crops use the water from aquifers (groundwater) to survive
• In Saudi Arabia, water is extracted from the aquifers by drilling
deep into the ground under the desert floor and pumping it to the
surface sprinkler system.
Each circular field shown in green is
approximately 1 kilometre wide
• Geographers and environmental scientists now believe that this
type of farming has become unsustainable – both environmentally
and economically.
• In time, supplies of water in the aquifer will become totally depleted
as they are being used far more quickly than they can be
replenished.
• The high cost associated with accessing water from the aquifers
also means that crops grown in this way will soon become too
expensive to buy.
Is using this groundwater a sustainable practice?
Why or why not?
81. Changes to Grasslands
• Because the world’s most
important food crops − rice, wheat
and corn − are grasses, they grow
best in the world’s grasslands
biome. However, clearing of native
grasses to plant these crops can
have devastating effects on the
natural environment.
• Across much of Australia, North
and South America, Asia and
Africa, native grasses have been
cleared and replaced by these
three crops to provide food.
Impact
on
Biome
Harvesting
makes soil
less fertile
Chemical
fertilisers
affect soil and
cause
pollution
Pesticides
pollute air,
soil and water
Exposed soil
can be
washed away
by wind and
water
83. Topographic Maps
▪ Topographic maps have been overlaid with a grid.
What can we do with topographic maps?
▪ We can find out the distance from one place to
another
▪ We can work out the height of the land.
▪ We can work out the direction from one place to
another
▪ We can use scale on the map
▪ We can find places using the grid on the map and
area and grid reference
84.
85. Horizontal before
vertical- you have to
walk before you can
climb
Area Reference:
Gives the location of
one square on the
grid
e.g. AR4274
Grid references give
a more specific
location within the
square
e.g. GR412751
92. Where Does My Food Come From?
▪ Make a list of all the places that
you (or your carers) buy food
from e.g. supermarkets,
butchers, fruit shops, general
stores, farmers markets,
takeaway, restaurants
▪ Do you grow any food yourself?
If so, what do you grow?
Write heading and answer questions in book
93. Where Does My Food Come From?
1. Make a list of 10 pre-packaged
foods that you or your family
eats.
2. Next to each one, write down
where you think they come
from.
3. Check with a partner to see if
they agree
▪ I will look up the answers for you
94. “People in developing countries are more likely to know where all of their food comes from,
than people in developed countries”
Do you agree or disagree with this statement, and why?
Write the statement and answer in your book
In the developing world, the majority of
people’s food comes from what they can
grow and gather themselves. They spend a
lot of their life tending to crops and
animals.
In developed countries like Australia, a lot
of our food comes pre-packaged in
supermarkets and we may be unsure of
where it came from.
95. Explain why each of the white areas in the following regions
and countries may be unsuitable for agriculture: Australia,
South America, North Africa, Central Asia.
98. Factors that Influence Farming
What are some natural and
human problems that farmers
have to face?
Copy the mind-map into your books
99. “Farm smarter, not harder”
▪ What does this mean to you?
▪ Write 1-2 sentences in your
book
100. The Green Revolution
▪ The Green Revolution saw a massive change in farming technology.
▪ It occurred between 1930 and 1960
▪ New technologies included:
New, high-yielding varieties (HYVs) of cereals
Synthetic fertilisers and pesticides
▪ The "Father of the Green Revolution“ received the Nobel Peace Prize in 1970, for saving
over a billion people from starvation
▪ https://www.youtube.com/watch?v=HucSCNQ01X4
Write