Hydrosphere
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The document discusses the importance of water and the hydrosphere. It notes that water is essential to life as it nourishes cells and removes waste, and is also essential for plants, homes, factories, and producing goods. Additionally, it states that rainfall determines whether humanity survives or perishes. The document provides statistics on the composition of Earth's water, noting that 70% of the surface is water, 96.5% of which is in oceans. It explains that only 2.5% of water is freshwater, most of which is locked in ice caps and glaciers or underground.
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Water in living beings
Water is essential for all living things and makes up a large percentage of their bodies. It has three forms - gas, liquid, and ice. Water is needed by living things in many ways and quantities, and can be consumed by organisms or serve as their habitat. Most animals are composed of 60-70% water, while plants contain even more at 75-90%. The human body is also mostly water - over 60% in young adults, decreasing with age. Blood is about 60% plasma, which itself is 95% water. Urine also consists of around 95% water. The document examines the role and percentages of water in various living beings.
The importance of water_SP
Water is essential for all life on Earth. It makes up a large portion of both terrestrial and aquatic living beings. In humans, water makes up around two-thirds of the body's composition and is distributed throughout our organs and systems. It performs crucial functions like cleansing the kidneys, regulating temperature, and transporting oxygen and nutrients via blood plasma. Drinking water provides health benefits such as reducing risks of diseases, improving appearance, and aiding weight loss. In conclusion, water is vital for sustaining all life and should not be wasted.
The Problem Water Pollution
Water pollution is a major problem that impacts all life on Earth. While humans are the largest cause of water pollution through various sources, nature also contributes. Water pollution can seriously harm drinking water supplies and disrupt marine ecosystems and food chains by causing fish deaths. It is up to humans to reduce pollution and protect the planet's fresh water resources that all organisms depend on.
Planet earth or planet water
Without water, life on Earth would not exist as water is essential for all living things. While it seems like there is plenty of water in oceans, lakes and rivers, most water on Earth is saltwater in oceans and only 3% is freshwater, with most locked in ice caps and glaciers. The limited freshwater resources are critical for human and agricultural uses but the total amount of water on Earth is fixed, being recycled over time rather than a replenishing resource.
Why is water important bkmw
Water is essential for all life on Earth. The human body is made up of 45-60% water and water is needed for critical functions like regulating body temperature and transporting nutrients. While the oceans hold the vast majority of Earth's water, less than 1% of water is available as freshwater in rivers, lakes, and groundwater. Given water's unique properties as a solvent and its role in biological and industrial processes, access to clean water is necessary for drinking, sanitation, agriculture, and electricity generation.
water
This is a powerpoint presentation by Ayushi Kumari of Delhi Public School , Bokaro Steel City , Jharkhand India from CBSC board.
Water
Water is a chemical compound with the formula H2O that covers 71% of the Earth's surface and is vital for all life. It can exist in solid, liquid, and gas states and appears naturally in many forms on Earth. The human body contains 55-78% water and needs 1-7 liters daily to avoid dehydration. Water regulates the Earth's temperature and its pollution poses a major threat, as over 780 million people lack access to clean drinking water.
DID YOU KNOW...?
Fresh water is a precious resource that makes up only 3% of the water on Earth, yet agriculture consumes 70% of fresh water due to inappropriate irrigation technologies. Water exists in three states - liquid, gas, and solid - and is vital for sustaining all life on Earth. As the planet's population and demand for resources increases, the available fresh water is decreasing, making it important that we learn to conserve and efficiently use this critical commodity.
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Water in living beings
Water is essential for all living things and makes up a large percentage of their bodies. It has three forms - gas, liquid, and ice. Water is needed by living things in many ways and quantities, and can be consumed by organisms or serve as their habitat. Most animals are composed of 60-70% water, while plants contain even more at 75-90%. The human body is also mostly water - over 60% in young adults, decreasing with age. Blood is about 60% plasma, which itself is 95% water. Urine also consists of around 95% water. The document examines the role and percentages of water in various living beings.
The importance of water_SP
Water is essential for all life on Earth. It makes up a large portion of both terrestrial and aquatic living beings. In humans, water makes up around two-thirds of the body's composition and is distributed throughout our organs and systems. It performs crucial functions like cleansing the kidneys, regulating temperature, and transporting oxygen and nutrients via blood plasma. Drinking water provides health benefits such as reducing risks of diseases, improving appearance, and aiding weight loss. In conclusion, water is vital for sustaining all life and should not be wasted.
The Problem Water Pollution
Water pollution is a major problem that impacts all life on Earth. While humans are the largest cause of water pollution through various sources, nature also contributes. Water pollution can seriously harm drinking water supplies and disrupt marine ecosystems and food chains by causing fish deaths. It is up to humans to reduce pollution and protect the planet's fresh water resources that all organisms depend on.
Planet earth or planet water
Without water, life on Earth would not exist as water is essential for all living things. While it seems like there is plenty of water in oceans, lakes and rivers, most water on Earth is saltwater in oceans and only 3% is freshwater, with most locked in ice caps and glaciers. The limited freshwater resources are critical for human and agricultural uses but the total amount of water on Earth is fixed, being recycled over time rather than a replenishing resource.
Why is water important bkmw
Water is essential for all life on Earth. The human body is made up of 45-60% water and water is needed for critical functions like regulating body temperature and transporting nutrients. While the oceans hold the vast majority of Earth's water, less than 1% of water is available as freshwater in rivers, lakes, and groundwater. Given water's unique properties as a solvent and its role in biological and industrial processes, access to clean water is necessary for drinking, sanitation, agriculture, and electricity generation.
water
This is a powerpoint presentation by Ayushi Kumari of Delhi Public School , Bokaro Steel City , Jharkhand India from CBSC board.
Water
Water is a chemical compound with the formula H2O that covers 71% of the Earth's surface and is vital for all life. It can exist in solid, liquid, and gas states and appears naturally in many forms on Earth. The human body contains 55-78% water and needs 1-7 liters daily to avoid dehydration. Water regulates the Earth's temperature and its pollution poses a major threat, as over 780 million people lack access to clean drinking water.
DID YOU KNOW...?
Fresh water is a precious resource that makes up only 3% of the water on Earth, yet agriculture consumes 70% of fresh water due to inappropriate irrigation technologies. Water exists in three states - liquid, gas, and solid - and is vital for sustaining all life on Earth. As the planet's population and demand for resources increases, the available fresh water is decreasing, making it important that we learn to conserve and efficiently use this critical commodity.
Water a future resource
Water is a chemical compound made of hydrogen and oxygen atoms. It exists as a liquid on Earth but can also be a solid (ice) or gas (water vapor). Water is essential for all life - plants and animals need it to survive and humans use it for drinking, cooking, washing, recreation, farming and more. The water cycle describes how water is constantly recycled between the atmosphere, oceans, and land through processes like evaporation, condensation, precipitation and runoff, driven by energy from the sun. This cycling of water is crucial for sustaining life on our planet.
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This document discusses several issues related to fresh water resources and sustainability. It notes that fresh water is vital for life and civilization but that human actions are putting the health of the planet at risk. It then outlines some key ways that water is used to support energy production, agriculture, and drinking water, as well as how forests play an important role in water supply. The document goes on to discuss several challenges facing global fresh water resources, including water scarcity due to climate change, deforestation reducing water supply, increasing demand outpacing reliable supply, water pollution harming ecosystems, and lack of understanding of nature's economic benefits.
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The document discusses the hydrosphere and properties of water. It notes that the hydrosphere includes all water on Earth, which covers 71% of the planet's surface. It also notes that living things contain water in varying proportions, such as 70% for humans and 99.5% for jellyfish. The document then asks questions about where water can be found on Earth, differences between sea and river water, the water cycle, the importance of conserving water, and ways to save water.
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This document discusses water and its importance on Earth. It covers that water covers 71.4% of the Earth's surface and is made of two hydrogen atoms and one oxygen atom. It then discusses how water is essential for life, as plants, animals and humans are mostly made of water and need it to live. The document also touches on water pollution, how waste can pollute bodies of water, damaging both individual species and whole ecosystems.
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Water resources are sources of water that are useful to humans for agricultural, industrial, household, recreational and environmental activities. While fresh water makes up only 3% of the water on Earth, demand already exceeds supply in many parts of the world. As the population rises, so too does water demand, while climate change threatens to decrease available fresh water. Freshwater ecosystems are declining rapidly due to human water usage and loss of wetlands.
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This document provides an overview of various water sources and topics. It discusses where water is found on Earth, with 71% of the surface covered by water. Rivers are described as transporting water and providing supply and electricity via dams and power stations. Oceans and seas hold almost all of the world's liquid water in the form of salt water, with salinity varying depending on temperature. Currents, tides, and waves in oceans are also covered. The document defines lakes and their various origins from precipitation, rivers, or glaciers. Groundwater and glaciers are sources of drinking water, and groundwater also supplies rivers and lakes. Finally, problems related to water such as consumption, distribution, pollution, and acid rain are
Waters day 2020
Why do we celebrate Water Day?
The Importance of Water
World Water Day, held on 22 March every year since 1993, focuses on the importance of freshwater. World Water Day celebrates water and raises awareness of the 2.2 billion people living without access to safe water. It is about taking action to tackle the global water crisis.
What is the theme for World Water Day 2020?
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The theme for 2020 is "Water and Climate Change" and explores how the two issues are inextricably linked. In light of the growing coronavirus pandemic in 2019 and 2020, the 2020 campaign also promoted messages around handwashing and hygiene and gave guidance on staying safe while supporting the campaign.
Why is the water level going down?
Pumping water out of the ground faster than it is replenished over the long-term causes similar problems. The volume of groundwater in storage is decreasing in many areas of the United States in response to pumping. Groundwater depletion is primarily caused by sustained groundwater pumping. ... increased pumping costs.
Why is World Water Day on March 22?
World Water Day is held annually on 22 March as a means of focusing attention on the importance of freshwater and advocating for the sustainable management of freshwater resources.
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Like Leonardo said that water is the driver of nature, it proceeds life forward in the right direction and the worst part is that we never understand its importance. We are like the passenger who is sitting behind in his seat relaxing and never understand the efforts put by the driver to move the vehicle forward. But it’s time for us to understand that life can’t continue without water and we have to save it. It’s our planet, it’s our water and only we are responsible for its conservation.
water the wonder liquid
Water is a transparent fluid that forms the world's streams, lakes, oceans, and rain. It consists of one oxygen molecule and two hydrogen molecules. Two thirds of the human body is dependent on water, which serves important functions like detoxification, lubrication, and nutrient transportation. The daily water requirement for humans is 2-2.5 liters, with food providing 1 liter and drinking water supplying the remaining 1.5-2 liters. Natural sources of water include rain, underground aquifers, and surface water sources like rivers and lakes. Fresh water is naturally occurring while portable water is fit for human consumption. The water cycle describes the movement of water on Earth through states of liquid, vapor, and ice
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The document discusses various topics related to water pollution including its causes, forms, and classification. It notes that pollution occurs when silt and other materials enter bodies of water, reducing oxygen levels and harming aquatic life. The major sources of water pollution are classified as municipal, industrial, and agricultural. The hydrosphere, which includes oceans, seas, lakes and rivers, covers 70% of the Earth's surface and is impacted by pollution.
Water Pollution
This document discusses the forms and distribution of water on Earth. It notes that 97.2% of Earth's water is salt water found in oceans, while only 2.8% is fresh water. Water can take solid, liquid, and gas forms depending on temperature. Earth is unique in our solar system for its abundance of water, which is essential for life. Sources of water pollution include fertilizers, industrial waste, sewage, and plastic waste, which are harming oceans and aquatic life. Asian rivers are some of the most polluted due to human and industrial waste. Oil pollution also threatens water, primarily through pipeline leaks and urban runoff.
Availability of water resources
This document summarizes water resources in India. It discusses that while the total water available globally is around 1600 million cubic km, only around 0.26% of that is readily usable by humans. It then discusses India's water resources in more detail, noting that the average annual rainfall is 1170 mm but varies widely in different parts of the country. Surface water and groundwater are the main sources of irrigation water. The document estimates India's total water demand in 2050 to be between 970-1200 billion cubic meters but total availability to be between 1100-1400 billion cubic meters, requiring conservation efforts. It concludes with suggestions for water conservation like improving irrigation efficiency and reducing losses.
The Bridge at the Edge of the World: Capitalism, the Environment, and Crossin...
The document discusses how human activity is negatively impacting the environment through overconsumption, materialism, and unsustainable practices of capitalism. Key facts presented include that 90% of large predator fish have disappeared, 75% of fisheries are overfished, 20% of corals are gone or damaged, half of tropical and temperate forests have been lost, and many species are becoming extinct at an alarming rate. Water scarcity is also discussed as a growing issue, with 36 states projected to face shortages by 2013 if consumption remains unchanged. The document argues transformative change is needed in values and economic systems to move towards a more sustainable relationship with the environment.
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The document discusses several issues related to water pollution:
- Water pollution is a major problem that threatens life on Earth as pollution destroys clean water sources.
- Most water pollution originates on land from human activities like farming and industry and is carried into water bodies.
- Solving water pollution requires education about the issue, laws to regulate polluting, and economic incentives.
- The document promotes an organization called H2O for Life that provides education and funding for water projects to help address water issues in developing countries.
Ecological footprint
The document discusses the concept of ecological footprint, which measures how much land and resources a human population requires to produce what it consumes and absorb its waste. It finds that humanity's footprint now exceeds what the planet can regenerate by over 23%. This ecological overshoot has led to problems like deforestation and climate change. While some nations like Cuba have reduced their footprint, most countries are running ecological deficits. The document analyzes footprint data for various nations and components. It predicts rising sea levels and temperatures will seriously impact coastal regions and marine life. An online footprint quiz demonstrates that the average footprint exceeds global biocapacity and many lifestyles are unsustainable.
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Worldwide water resources are being misused, polluted, and becoming scarcer due to population growth, increased consumption, and unsustainable use. Freshwater withdrawals have tripled in the last 50 years and are increasing by 64 billion cubic meters annually. At the current rate of consumption, it is unclear how long water resources will last or what will happen if more sustainable practices are not adopted.
Earth hydrospher and water pollution
The hydrosphere refers to all liquid water on Earth, including oceans, seas, lakes, rivers, streams, and groundwater. It covers 70% of the planet's surface and is home to many organisms. Water is constantly moving around Earth in the water cycle, flowing between oceans, atmosphere, and land. However, water pollution from human activities introduces harmful pollutants that get carried around the globe and damage ecosystems and human health, killing over 14,000 people daily. Preventing water pollution through monitoring laws and industrial regulation is important to ensure access to clean water.
The Role of Water Cycle in Rejuvenating Biosphere
The water cycle describes the continuous movement of water on, above, and below the surface of the Earth. Water exists in three states as it moves between oceans, the atmosphere, solid earth, and the biosphere through various processes. The constant circulation of water replenishes ecosystems, affects climate, and is essential for life.
The hydrosphere presentation
This document discusses the hydrosphere, which is the water sphere that surrounds the Earth. The hydrosphere comes from the Latin word "hydro" meaning water, and it covers about 71% of the Earth's surface. Water is essential for life as it makes up 75% of living cells and allows chemical reactions to occur. The hydrosphere also regulates climate, provides habitat, and is important for human and industrial use. However, water pollution and misuse threaten the hydrosphere. We must avoid pollution and misusing water to protect this critical part of our planet.
pollution of water and water source, water quality
This document provides an overview of water resources and water pollution. It discusses how most of Earth's water is salt water and only 3% is freshwater, with much of the freshwater locked up in glaciers and ice caps. It outlines the water cycle and sources of water for human use. It also discusses the many purposes of water for public supplies, industrial processes, agriculture, recreation, and more. Finally, it defines water pollution and notes that pollution is a major global problem caused by both natural phenomena and human activities.
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This document discusses several issues related to fresh water resources and sustainability. It notes that fresh water is vital for life and civilization but that human actions are putting the health of the planet at risk. It then outlines some key ways that water is used to support energy production, agriculture, and drinking water, as well as how forests play an important role in water supply. The document goes on to discuss several challenges facing global fresh water resources, including water scarcity due to climate change, deforestation reducing water supply, increasing demand outpacing reliable supply, water pollution harming ecosystems, and lack of understanding of nature's economic benefits.
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The document discusses the hydrosphere and properties of water. It notes that the hydrosphere includes all water on Earth, which covers 71% of the planet's surface. It also notes that living things contain water in varying proportions, such as 70% for humans and 99.5% for jellyfish. The document then asks questions about where water can be found on Earth, differences between sea and river water, the water cycle, the importance of conserving water, and ways to save water.
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This document discusses water and its importance on Earth. It covers that water covers 71.4% of the Earth's surface and is made of two hydrogen atoms and one oxygen atom. It then discusses how water is essential for life, as plants, animals and humans are mostly made of water and need it to live. The document also touches on water pollution, how waste can pollute bodies of water, damaging both individual species and whole ecosystems.
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Water resources are sources of water that are useful to humans for agricultural, industrial, household, recreational and environmental activities. While fresh water makes up only 3% of the water on Earth, demand already exceeds supply in many parts of the world. As the population rises, so too does water demand, while climate change threatens to decrease available fresh water. Freshwater ecosystems are declining rapidly due to human water usage and loss of wetlands.
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This document provides an overview of various water sources and topics. It discusses where water is found on Earth, with 71% of the surface covered by water. Rivers are described as transporting water and providing supply and electricity via dams and power stations. Oceans and seas hold almost all of the world's liquid water in the form of salt water, with salinity varying depending on temperature. Currents, tides, and waves in oceans are also covered. The document defines lakes and their various origins from precipitation, rivers, or glaciers. Groundwater and glaciers are sources of drinking water, and groundwater also supplies rivers and lakes. Finally, problems related to water such as consumption, distribution, pollution, and acid rain are
Waters day 2020
Why do we celebrate Water Day?
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World Water Day, held on 22 March every year since 1993, focuses on the importance of freshwater. World Water Day celebrates water and raises awareness of the 2.2 billion people living without access to safe water. It is about taking action to tackle the global water crisis.
What is the theme for World Water Day 2020?
Water and Climate Change
The theme for 2020 is "Water and Climate Change" and explores how the two issues are inextricably linked. In light of the growing coronavirus pandemic in 2019 and 2020, the 2020 campaign also promoted messages around handwashing and hygiene and gave guidance on staying safe while supporting the campaign.
Why is the water level going down?
Pumping water out of the ground faster than it is replenished over the long-term causes similar problems. The volume of groundwater in storage is decreasing in many areas of the United States in response to pumping. Groundwater depletion is primarily caused by sustained groundwater pumping. ... increased pumping costs.
Why is World Water Day on March 22?
World Water Day is held annually on 22 March as a means of focusing attention on the importance of freshwater and advocating for the sustainable management of freshwater resources.
Drop on the planet: visualizations of water on Earth
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Like Leonardo said that water is the driver of nature, it proceeds life forward in the right direction and the worst part is that we never understand its importance. We are like the passenger who is sitting behind in his seat relaxing and never understand the efforts put by the driver to move the vehicle forward. But it’s time for us to understand that life can’t continue without water and we have to save it. It’s our planet, it’s our water and only we are responsible for its conservation.
water the wonder liquid
Water is a transparent fluid that forms the world's streams, lakes, oceans, and rain. It consists of one oxygen molecule and two hydrogen molecules. Two thirds of the human body is dependent on water, which serves important functions like detoxification, lubrication, and nutrient transportation. The daily water requirement for humans is 2-2.5 liters, with food providing 1 liter and drinking water supplying the remaining 1.5-2 liters. Natural sources of water include rain, underground aquifers, and surface water sources like rivers and lakes. Fresh water is naturally occurring while portable water is fit for human consumption. The water cycle describes the movement of water on Earth through states of liquid, vapor, and ice
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The document discusses various topics related to water pollution including its causes, forms, and classification. It notes that pollution occurs when silt and other materials enter bodies of water, reducing oxygen levels and harming aquatic life. The major sources of water pollution are classified as municipal, industrial, and agricultural. The hydrosphere, which includes oceans, seas, lakes and rivers, covers 70% of the Earth's surface and is impacted by pollution.
Water Pollution
This document discusses the forms and distribution of water on Earth. It notes that 97.2% of Earth's water is salt water found in oceans, while only 2.8% is fresh water. Water can take solid, liquid, and gas forms depending on temperature. Earth is unique in our solar system for its abundance of water, which is essential for life. Sources of water pollution include fertilizers, industrial waste, sewage, and plastic waste, which are harming oceans and aquatic life. Asian rivers are some of the most polluted due to human and industrial waste. Oil pollution also threatens water, primarily through pipeline leaks and urban runoff.
Availability of water resources
This document summarizes water resources in India. It discusses that while the total water available globally is around 1600 million cubic km, only around 0.26% of that is readily usable by humans. It then discusses India's water resources in more detail, noting that the average annual rainfall is 1170 mm but varies widely in different parts of the country. Surface water and groundwater are the main sources of irrigation water. The document estimates India's total water demand in 2050 to be between 970-1200 billion cubic meters but total availability to be between 1100-1400 billion cubic meters, requiring conservation efforts. It concludes with suggestions for water conservation like improving irrigation efficiency and reducing losses.
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The document discusses how human activity is negatively impacting the environment through overconsumption, materialism, and unsustainable practices of capitalism. Key facts presented include that 90% of large predator fish have disappeared, 75% of fisheries are overfished, 20% of corals are gone or damaged, half of tropical and temperate forests have been lost, and many species are becoming extinct at an alarming rate. Water scarcity is also discussed as a growing issue, with 36 states projected to face shortages by 2013 if consumption remains unchanged. The document argues transformative change is needed in values and economic systems to move towards a more sustainable relationship with the environment.
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The document discusses several issues related to water pollution:
- Water pollution is a major problem that threatens life on Earth as pollution destroys clean water sources.
- Most water pollution originates on land from human activities like farming and industry and is carried into water bodies.
- Solving water pollution requires education about the issue, laws to regulate polluting, and economic incentives.
- The document promotes an organization called H2O for Life that provides education and funding for water projects to help address water issues in developing countries.
Ecological footprint
The document discusses the concept of ecological footprint, which measures how much land and resources a human population requires to produce what it consumes and absorb its waste. It finds that humanity's footprint now exceeds what the planet can regenerate by over 23%. This ecological overshoot has led to problems like deforestation and climate change. While some nations like Cuba have reduced their footprint, most countries are running ecological deficits. The document analyzes footprint data for various nations and components. It predicts rising sea levels and temperatures will seriously impact coastal regions and marine life. An online footprint quiz demonstrates that the average footprint exceeds global biocapacity and many lifestyles are unsustainable.
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Worldwide water resources are being misused, polluted, and becoming scarcer due to population growth, increased consumption, and unsustainable use. Freshwater withdrawals have tripled in the last 50 years and are increasing by 64 billion cubic meters annually. At the current rate of consumption, it is unclear how long water resources will last or what will happen if more sustainable practices are not adopted.
Earth hydrospher and water pollution
The hydrosphere refers to all liquid water on Earth, including oceans, seas, lakes, rivers, streams, and groundwater. It covers 70% of the planet's surface and is home to many organisms. Water is constantly moving around Earth in the water cycle, flowing between oceans, atmosphere, and land. However, water pollution from human activities introduces harmful pollutants that get carried around the globe and damage ecosystems and human health, killing over 14,000 people daily. Preventing water pollution through monitoring laws and industrial regulation is important to ensure access to clean water.
The Role of Water Cycle in Rejuvenating Biosphere
The water cycle describes the continuous movement of water on, above, and below the surface of the Earth. Water exists in three states as it moves between oceans, the atmosphere, solid earth, and the biosphere through various processes. The constant circulation of water replenishes ecosystems, affects climate, and is essential for life.
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This document discusses the hydrosphere, which is the water sphere that surrounds the Earth. The hydrosphere comes from the Latin word "hydro" meaning water, and it covers about 71% of the Earth's surface. Water is essential for life as it makes up 75% of living cells and allows chemical reactions to occur. The hydrosphere also regulates climate, provides habitat, and is important for human and industrial use. However, water pollution and misuse threaten the hydrosphere. We must avoid pollution and misusing water to protect this critical part of our planet.
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This document provides an overview of water resources and water pollution. It discusses how most of Earth's water is salt water and only 3% is freshwater, with much of the freshwater locked up in glaciers and ice caps. It outlines the water cycle and sources of water for human use. It also discusses the many purposes of water for public supplies, industrial processes, agriculture, recreation, and more. Finally, it defines water pollution and notes that pollution is a major global problem caused by both natural phenomena and human activities.
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The document discusses the hydrosphere, which refers to the combined mass of water found on, under, and over the surface of a planet. It notes that the Earth's hydrosphere totals about 1.4 × 1018 tonnes, with about 20 × 1012 tonnes located in the atmosphere. Approximately 75% of the Earth's surface is covered by oceans, which have an average salinity of 35 grams of salt per kilogram of sea water. The hydrological cycle involves evaporation from surfaces like oceans and transpiration from plants, which adds water vapor to the atmosphere. Water pollution is a major global problem and can be caused by industrial discharges, agricultural and construction runoff, improper waste disposal, and other
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The document discusses the hydrosphere, which refers to the combined mass of water found on, under, and over the surface of a planet. It notes that the Earth's hydrosphere totals about 1.4 × 1018 tonnes, with about 20 × 1012 tonnes located in the atmosphere. Approximately 75% of the Earth's surface is covered by oceans, which have an average salinity of 35 grams of salt per kilogram of sea water. The hydrological cycle involves evaporation from surfaces like oceans and transpiration from plants, which adds water vapor to the atmosphere. Water pollution is a major global problem and can be caused by industrial discharges, agricultural and construction runoff, improper waste disposal, and other
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The hydrosphere refers to all water on, under, and over the surface of a planet, including water in oceans, rivers, lakes, atmosphere, and groundwater. The Earth's hydrosphere contains about 1.4 x 10^18 tonnes of water, with about 97% located in oceans. Water cycles through the hydrosphere via the hydrologic cycle. The hydrosphere supports life and is essential to the biosphere but is threatened by pollution from human activities like industry, agriculture, and waste disposal.
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The hydrosphere refers to all water on, under, and over the surface of a planet, including water in oceans, rivers, lakes, atmosphere, and groundwater. The Earth's hydrosphere contains about 1.4 x 10^18 tonnes of water, with about 97% located in oceans. Water cycles through the hydrosphere via the hydrologic cycle. The hydrosphere supports life and is essential to the biosphere but is threatened by pollution from human activities.
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Earth is the only planet where liquid water exists naturally. More than two-thirds of Earth's surface is covered by water, including oceans, lakes, streams, glaciers, and atmospheric water vapor. Water interacts with the atmosphere, lithosphere, and biosphere through the water cycle, weathering of rock, and plant transpiration. The hydrosphere plays a vital role in regulating climate, providing habitat, and fulfilling human and biological needs through its ability to dissolve substances and regulate temperatures.
ESSAY WATER.doc
Water is essential for all life on Earth. It is necessary for hydration, temperature regulation, oxygen transfer, plant growth, and reproduction in humans, animals and plants. Nature provides water through the water cycle of evaporation, condensation and precipitation, but access to clean water varies greatly around the world. Many regions currently face or will soon face water shortages without changes to water management and conservation practices. Preserving access to clean, plentiful water is critical for ensuring public health, economic activity and protecting the environment upon which all life depends.
Sea exploration
The document discusses various topics related to oceans and sea pollution including:
1) It provides background on the importance of oceans and water to life on Earth. Approximately 71% of the planet is covered by oceans which provide habitat for many species and play a key role in regulating climate.
2) It discusses two types of sea pollution - direct and indirect. Direct pollution involves toxic waste being dumped directly into oceans while indirect results from land-based pollution eventually making its way into waterways.
3) Other threats to oceans mentioned include overfishing, exploration of non-renewable resources like sand and coral reefs, and dumping of plastic waste which can harm sea life.
4) The conclusion emphasizes that
Water cycle
Biogeochemical cycles
Water cycle
Why water is important?
Distribution of water on Earth
Steps of water cycle
Pollution- How effects on water cycle
Groundwater depletion
Ep
The document discusses various topics related to water including its importance, the water cycle, the ocean, currents and tides, and how humans affect water. It notes that water is essential for life but only 1% of the total water is available for human use. The water cycle involves processes like evaporation and condensation that move water from the clouds to the ocean and around the world. The ocean contains a vast amount of life but its water is salty and unsuitable for drinking. Currents and tides are caused by various natural factors and can be dangerous, while human waste is polluting the ocean and harming sea life.
IMPORTANCE OF THE WATER IN OUR LIFES
The document discusses pollution of water resources and possible solutions. It notes that water is essential for life but is being wasted and contaminated through various human activities. This poses risks to human health and the environment. The document advocates educating people on sustainable water use and implementing treatment systems to purify industrial and agricultural wastewater before releasing it into rivers and oceans.
Distribution of earth's water location water_on_the_earth
Here is a possible response using the RACE structure:
R: Where is most of Earth's water located and in what forms does it exist?
A: The majority of Earth's water is located in oceans as saltwater.
C: The text states that "About 97% of all water is in the oceans" and "Most of the freshwater on Earth is located in glaciers and ice caps."
E: This shows that most of Earth's water exists in oceans in the form of saltwater because around 97% of the total water on Earth is found in oceans. The text cites specific percentages to prove that the vast majority of water is located in oceans rather than other locations like rivers, lakes, or
Aquatic Habitat: The River
An aquatic habitat is a habitat with water. It includes areas that are permanently covered by water and surrounding areas that are occasionally covered by water. Estuaries, rivers, and marshes are examples of aquatic habitats.
Natural resource
The document discusses natural resources on Earth. It describes the biosphere as the world of living organisms and layers of air, water and soil that make up the highest level of organization on Earth. It contains two components - abiotic non-living things like air and soil, and biotic living things. The document then discusses various natural resources like air, water, soil and their importance. It also explains various biogeochemical cycles like the water, nitrogen, carbon and oxygen cycles that are essential for life.
Similar to Hydrosphere (18)
pollution of water and water source, water quality
pollution of water and water source, water quality
Distribution of earth's water location water_on_the_earth
Distribution of earth's water location water_on_the_earth
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Gravity
1) Gravity pulls every object toward every other object, with a greater pull exerted by objects with more mass.
2) While early scientists thought heavier objects fell faster, Galileo demonstrated that in a vacuum all objects fall at the same rate regardless of mass, with differences on Earth due to air resistance.
3) Einstein's theory of general relativity explained that gravity is not a force but rather the curvature of spacetime itself caused by massive objects.
Scientific Method: Variables (Part 1)
Scientific experiments require carefully controlling variables. The change variable is the only thing that differs between experimental groups. The dependent variable is measured to assess the change variable's effects. Control variables are kept the same in all groups to isolate the independent impact of the change variable. A fair experiment only manipulates one change variable and keeps all else constant.
Rapid Earth Changes
Natural disasters are changes to the Earth's surface that are so great they can damage land and threaten lives. They include volcanic eruptions, earthquakes, tsunamis, hurricanes, tornadoes, avalanches, floods, droughts, wildfires, dust storms, and sinkholes. The 2011 earthquake and tsunami in Japan killed over 20,000 people and caused $235 billion in damage, making it the costliest natural disaster in history. Volcanic eruptions and earthquakes can trigger tsunamis, which can have wave heights over 100 feet high.
Alessandro Volta's Battery
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Forces and Motion: Friction
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Wheel and Axles and Gears
PowerPoint on wheels and axles and gears. Goes with investigation of various gear models (not included).
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Skeletal System
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Hydrosphere
- 1. What do you see in this image? How was this image taken? Do you think there is more land or water on Earth? Why?
- 2. Let’s think about the importance of water... Let’s think about the importance of water...
- 3. Water is essential to life, as it nourishes our cells and removes the waste they generate. Water is essential to life, as it nourishes our cells and removes the waste they generate.
- 4. Water determines whether plants produce food, or whether they wither from drought or rot from dampness. Water determines whether plants produce food, or whether they wither from drought or rot from dampness.
- 5. Water is essential to our homes and factories, to our production of food, lumber, and manufactured goods, and to just about everything else we produce and consume. Water is essential to our homes and factories, to our production of food, lumber, and manufactured goods, and to just about everything else we produce and consume.
- 6. Rainfall is one of the most important weather and climate variables that determine whether humankind survives, thrives, or perishes. Rainfall is one of the most important weather and climate variables that determine whether humankind survives, thrives, or perishes.
- 7. Water is so ever-present on planet Earth that we often take it for granted. Water is so ever-present on planet Earth that we often take it for granted.
- 9. Too much water results in devastating floods... Too much water results in devastating floods...
- 10. ... and the famine caused by too little water (drought) is responsible for more human deaths than all other natural disasters combined. <pmm.nasa.gov> ... and the famine caused by too little water (drought) is responsible for more human deaths than all other natural disasters combined. <pmm.nasa.gov>
- 11. The Hydrosphere
- 12. Composition of Earth Earth Has 4 main systems that interact: The Atmosphere – air/gases The Hydrosphere - water The Biosphere - life The Geosphere – land/rocks
- 13. The Hydrosphere is all the water on Earth.
- 14. “Hydro” comes from Greek and means “water”.
- 15. Approximately 70% of the Earth’s surface is water 30% of the Earth’s surface is land
- 17. 96.5% of Earth’s water is in seas and oceans. 96.5% of Earth’s water is in seas and oceans.
- 18. Sea water is saline. What do you think the word “saline” means? (Hint: The first 3 letters of the word “saline” are “sal”.)
- 19. Saline water has dissolved salt in it. (How did salt get in the ocean?)
- 20. If saline water has salt in it, what do we call water that doesn’t have salt in it?
- 21. “freshwater”
- 22. So, we know that the ocean has large amounts of dissolved salt in it. It is not fit to drink, water crops, clean with, or use in factories. So, we know that the ocean has large amounts of dissolved salt in it. It is not fit to drink, water crops, clean with, or use in factories.
- 23. “Water, water, everywhere, Nor any drop to drink.” Samuel Taylor Coleridge 1797 “The Rime of the Ancient Mariner”
- 24. Only 2.5% of Earth’s water is fresh.Only 2.5% of Earth’s water is fresh.
- 26. We know that only 2.5% of Earth’s water is usable by humans. How is this 2.5% distributed on the planet? We know that only 2.5% of Earth’s water is usable by humans. How is this 2.5% distributed on the planet?
- 27. 68.6% of our fresh water is in the polar ice caps and...
- 28. ...glaciers.
- 29. 30.1% of fresh water is ground water. 30.1% of fresh water is ground water.
- 30. The remaining 1.3% is in lakes...
- 31. ...rivers...
- 32. ...snow...
- 33. ...rain...
- 35. ...fog and mist (water vapor)...
- 39. Trivia Earth is the only planet in our solar system that has water in its liquid state. Earth has just the right mass, atmosphere, and distance from the Sun to permit water to exist mainly as a liquid.
- 40. Trivia About 72% of your body is water.
- 41. Trivia Water circulates through the crust, oceans, and atmosphere in what is known as the water cycle.
- 42. Trivia http://www.kidzone.ws/water/index.html Look around you. Someone probably has a water bottle on their desk. Take a good long look at the water. Now -- can you guess how old it is? The water may have been bottled just last week, but the water itself has been around pretty much as long as the earth has!
- 43. Trivia Water is made of just 2 elements...hydrogen and oxygen. 1 water molecule has 2 hydrogen atoms and 1 oxygen atom. Thus, the formula for water is H2O.
- 44. Bill Nye’s take on the water cycle… http://jp.youtube.com/watch?v=ZQIVx_BOCJU http://jp.youtube.com/watch?feature=related&hl=en&v=2XU9_ http://jp.youtube.com/watch?v=dGSkcrw00HM&feature=relate