The influence of human activity on the environment
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Acid rain damages trees and pollutes rivers and lakes, causing erosion of buildings and statues made of limestone. Deforestation to make way for agriculture and timber increases pollution and decreases food production. Sustainable alternatives like organic farming using natural predators instead of pesticides and renewable energy sources like solar and wind power help conserve fossil fuels and reduce pollution.
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Final Project(BCA)- Estela Ria B. Espanilla BF
Deforestation is the permanent destruction of forests and woodlands for purposes like urban and construction development, growing crops, grazing land for livestock, and mining. This results in negative environmental impacts such as erosion, disruption of the water cycle, loss of biodiversity, flooding, and climate change from releasing stored carbon into the atmosphere. Individual actions like planting trees, reducing waste, and joining environmental groups can help prevent further deforestation.
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The document discusses the destruction of rainforests through deforestation, with trees being cut down and land becoming barren. It notes that an area the size of Singapore is destroyed every day, and a rainforest species goes extinct every 2.5 minutes. The rainforest is important as it provides resources for living things, absorbs carbon dioxide, helps cool the Earth, and reduces weather issues. Ways to help save rainforests include minimizing paper use, recycling, reusing materials, and using electronic communication.
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Deforestation has resulted in the clearing of six out of ten of Earth's original forests. It occurs for various reasons such as obtaining fuel, timber, and cleared land for agriculture. The removal of trees without sufficient reforestation has led to biodiversity loss, soil erosion, degraded wastelands, and the release of stored carbon into the atmosphere exacerbating climate change. Reforestation efforts need to focus on replenishing lost nutrients in soil in order to restore ecosystems and sustainability.
Threatened Agricultural Resources (Soil)
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Habitat Destruction
Habitat destruction occurs when human activities like deforestation and overhunting reduce the space and resources available for animals to live. It is mainly caused by the conversion of land for human settlements, agriculture, and other development. This disrupts food chains and can cause species extinction, as the loss of one animal may impact others that depend on it for survival. Solutions include sustainable logging, reforestation, and limiting urban sprawl to preserve natural habitats.
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Deforestation is the permanent destruction of forests and woodlands for purposes like urban and construction development, growing crops, grazing land for livestock, and mining. This results in negative environmental impacts such as erosion, disruption of the water cycle, loss of biodiversity, flooding, and climate change from releasing stored carbon into the atmosphere. Individual actions like planting trees, reducing waste, and joining environmental groups can help prevent further deforestation.
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This document discusses threatened agricultural resources, specifically soil. It defines soil and explains its importance for food production, storage, filtration and more. Soil degradation through improper use is defined, and its impacts are listed as loss of organic matter, declining fertility and structural condition, erosion, and effects from pollution. Ways to reduce land degradation and soil issues are discussed, such as gardening, afforestation, conservation tillage, wind breakers, and fertilizer use. Land reclamation, the process of creating new land from bodies of water, is also summarized.
Habitat Destruction
Habitat destruction occurs when human activities like deforestation and overhunting reduce the space and resources available for animals to live. It is mainly caused by the conversion of land for human settlements, agriculture, and other development. This disrupts food chains and can cause species extinction, as the loss of one animal may impact others that depend on it for survival. Solutions include sustainable logging, reforestation, and limiting urban sprawl to preserve natural habitats.
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Deforestation is the cutting down and removal of trees in a forested area which can erode soils, contribute to desertification and pollution of waterways, and decrease biodiversity by destroying habitats. It causes climate changes by reducing the forests' ability to absorb carbon dioxide. Many animals die from losing their habitats and species disappear when their forest homes are destroyed and unique habitats are removed from the Earth.
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Forests provide small-scale industries like beekeeping and basket making to tribal communities. They serve as energy reservoirs by trapping sunlight and storing it as biochemical products in fruits, nuts, seeds, nectar, and wood. Removing plants and trees would disrupt the atmospheric balance by reducing carbon dioxide absorption and oxygen release, which is essential for animal life. Deforestation leads to soil erosion and the loss of stored energy and nutrients in the system.
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Deforestation and pollution are damaging habitats and threatening organisms while human disrespect of the natural world contributes to these problems.
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The document discusses threats to biodiversity from human activity such as deforestation, animal cruelty, climate change, and pollution. It notes that the Living Planet Index compiled by the WWF shows declines in animal populations globally since 1970. Specific threats covered include rapid deforestation of forests for timber, agriculture, and development; poaching of animals like elephants and rhinos; impacts of climate change such as glacial melting; and habitat loss and degradation from activities like rainforest clearing, wetlands destruction, and pollution. Without conservation efforts, some species like polar bears may go extinct by the end of the century according to the passage.
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- Fertilization occurs when the sperm and egg meet during sexual intercourse, joining their nuclei.
- The fertilized egg implants in the uterus and forms the placenta, which exchanges gases and nutrients between the mother and developing fetus.
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Heat can be transferred between objects by conduction, convection, or radiation. Conduction requires direct contact as heat energy is transferred through particle vibrations. Convection occurs in fluids via density-dependent fluid motion and circulation. Radiation involves the emission and absorption of electromagnetic waves, allowing heat transfer through a vacuum. Changes of state, such as melting and boiling, occur when an object's temperature reaches a fixed point and additional heat instead goes toward changing its physical state.
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Respiration is the process the body uses to release energy from digested food. Aerobic respiration releases energy with oxygen, while anaerobic respiration releases energy without oxygen. The circulation system transports oxygen and glucose to cells through the blood, and transports carbon dioxide away from cells. The breathing system takes in oxygen and releases carbon dioxide through inhalation and exhalation in the lungs.
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Human activity has significantly impacted the environment through population growth, pollution, and resource use. The burning of fossil fuels releases greenhouse gases like carbon dioxide that cause global warming, while activities like deforestation and intensive farming damage habitats and pollute land and water sources. These human influences disrupt natural ecosystems and threaten many plant and animal species with extinction. Potential solutions involve adopting more sustainable practices like organic farming, pollution control, and developing alternative energy sources to conserve resources for future generations.
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Habitats are being destroyed for land expansion, agriculture, resource extraction, and pollution. The main causes of habitat loss are agriculture, climate change, and deforestation. Effects include reduced biodiversity, diminished pollination and seed dispersal, and impaired climate regulation. Some solutions proposed are reducing our carbon footprint, reforesting, ending plastic pollution, protecting wildlife, reducing waste, and building green structures.
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Deforestation and pollution are damaging habitats and threatening organisms while human disrespect of the natural world contributes to these problems.
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The document discusses the three states of matter - solids, liquids, and gases. It describes their properties and how they differ from each other. It also defines melting point as the temperature when a solid turns to liquid, and boiling point as the temperature when a liquid turns to gas. Evaporation is defined as the process where a liquid turns to gas below its boiling point due to factors like temperature, surface area, and humidity. The document explains that evaporation causes cooling by using the latent heat of vaporization to break the bonds between molecules in the liquid.
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This document discusses 16 Vedic mathematical sutras (formulae) for mental calculations. It provides examples of how to use each sutra to simplify calculations like multiplication, division, checking answers, finding remainders, testing divisibility, and counting arrangements. The sutras allow breaking numbers down in intuitive ways to perform calculations mentally or with minimal writing.
Transport of substances in plants
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Rationalnumbers
Rational numbers can be written as a ratio of two integers. They can be expressed as decimals that either terminate or repeat. Examples of rational numbers include integers like 16, 1/2, 8, and decimals like 1.33. Rational numbers have properties when added, subtracted, multiplied, and divided, such as closure, commutativity, associativity, and others. Every rational number has a reciprocal, and the reciprocal of a rational number a/b is b/a.
Neslon
Nelson Mandela was born in 1918 in South Africa and grew up under apartheid, a system of racial segregation and discrimination. He became an activist against apartheid and co-founded the African National Congress party. After years of non-violent protests failed, Mandela advocated for sabotage campaigns against the government. He was imprisoned for 27 years before being released in 1990 amid international pressure. Mandela then worked to dismantle apartheid through negotiations, becoming South Africa's first black president in 1994.
Nelson mandela
Nelson Mandela was born in 1918 in South Africa under apartheid rule. He became a lawyer and joined the African National Congress, leading non-violent protests against apartheid. When non-violence failed to achieve progress, he coordinated sabotage campaigns against the apartheid government, which led to his arrest in 1962. Mandela spent 27 years in prison, becoming a symbol of the anti-apartheid struggle. He was released in 1990 and helped negotiate the end of apartheid, becoming South Africa's first black president in 1994. After retiring, he continued advocating for social justice causes.
Green revolution
The Green Revolution significantly increased agricultural productivity in India through the introduction of high-yielding varieties of wheat and rice, increased fertilizer and pesticide use, and improved irrigation techniques. Led by Indian agronomist M.S. Swaminathan and supported by Mexican scientist Norman Borlaug, the Green Revolution transformed India from a food-deficient nation in the 1960s to a major food exporter by the late 1970s through high crop yields that established India as one of the world's largest agricultural producers. However, overuse of chemicals polluted water sources and soils over time. Future agricultural plans need better management of irrigation and controls on pesticide and fertilizer use to minimize environmental impacts.
Billgates
William Henry "Bill" Gates III was born in 1955 in Seattle, Washington. He took an interest in programming and was excused from math classes to learn programming. He wrote his first computer program, an implementation of tic-tac-toe, on a GE system. Gates graduated from Lakeside School in 1973 and scored 1590 out of 1600 on the SAT. He then enrolled at Harvard where he met his future business partner Steve Ballmer. After Harvard, Gates founded Microsoft and became its CEO, a position later taken by Steve Ballmer. The Bill and Melinda Gates Foundation is one of the largest private charitable foundations in the world.
Vedic maths
This document discusses 16 Vedic mathematical sutras (formulae) for mental calculations. It provides examples of how to use each sutra to simplify calculations like multiplication, division, checking answers, finding factors and remainders. The sutras allow breaking numbers down in intuitive ways to perform calculations mentally faster than traditional algorithms.
Ppt of women reformers
Savitribai Phule was a social reformer born in 1831 in Maharashtra who fought for women's education and rights. She opened a girls' school in 1848 despite facing opposition. She continued her work with her husband's support and published books of poems while contributing to educational and reform activities.
Mithuben Petit was influenced by Gandhi and established an ashram that taught and supported underprivileged children. She dedicated her life to helping the poor.
Rani Lakshimibai Rajwade practiced medicine for 14 years and was actively involved in women's organizations, becoming the first Indian woman to support resistance in South Africa. She was interested in arts and crafts and remained active
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Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
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The influence of human activity on the environment
- 1. NISHANT ROHATGI VII A Roll no. 26 MADE BY
- 3. Acid rain damages trees and pollutes rivers and lakes. Acid rain causes lots of destruction Acid rain causes erosion of buildings and statue particularly made of limestone
- 4. People are chopping down forests to provide timber or space for agriculture for the growing population
- 6. This produces less food and is more expensive but it does not produce the pollution problems of intensive farming
- 8. This means using natural predators to eat pests instead of pesticides It does not have harmful effects
- 9. Conserve our rapidly diminishing fossil fuel reserves by using solar power or wind power