Bio-recycling of water
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Water is essential for all life and covers 70% of the Earth's surface, mostly in oceans. 1.6% is found underground in aquifers, while a tiny amount exists in plants, animals, and manufactured goods. Water recycling decreases extraction from dwindling sources and pollution of sensitive ecosystems. It also creates and enhances wetlands while reducing pollutants at treatment plants. Recycled water has been safely used for industrial, agricultural, and household non-potable needs, and technological advances may enable indirect potable reuse.
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This document discusses water usage in agriculture, including irrigation methods and dryland farming. It notes that while 70% of Earth is covered in water, not all water is suitable for drinking or agriculture. It then describes various irrigation techniques like tube wells, tank irrigation, canals, and dams that provide fresh water for crops. Dryland farming relies solely on rainfall and is used in low rainfall areas. The document outlines problems in dryland agriculture like low soil fertility and irregular rains. Overall, it stresses that proper water management strategies are key to maintaining optimal agricultural production and yields.
Water Soil and Marine pollution
Water pollution is a major issue affecting mankind as water quality declines. Various sources contaminate water bodies, including industrial waste, sewage, agricultural runoff containing fertilizers and pesticides. This causes oxygen depletion in water, promotes algal blooms that release toxic chemicals, and spreads water-borne diseases. Solutions include treating wastewater before disposal and reuse, reducing water consumption, and preserving natural purification abilities of water bodies.
Water resources andrea
The document discusses various ways that people use water resources. It describes how water is used for agricultural, industrial, household, and recreational purposes. It also discusses the importance of conserving water resources and preventing water pollution given that only 3% of the Earth's water is freshwater and demand for water is rising as the global population increases.
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pd - popular struggles
This document discusses different types of organizations and movements that influence government decisions in a democracy. It provides the example of the Narmada Bachao Andolan movement in India, which started as a movement opposing the displacement of people for the Sardar Sarovar dam but grew to more broadly question large dam projects and models of development requiring them. The document contrasts single-issue movements that have clear short-term leadership with longer-term movements addressing multiple issues like the environmental and women's movements. It defines pressure groups as organizations attempting to influence government policies without directly controlling political power, and provides some examples of popular movements in India.
Geog-water resources
Only 3% of water on Earth is freshwater, with over two thirds frozen in glaciers and polar ice caps. The document defines rainwater harvesting as collecting, storing and using rainwater from rooftops and other hard surfaces for landscape irrigation and other uses. It also describes watershed management as the sustainable management of water resources like supply, quality and drainage within a watershed boundary through planning, programs and projects.
Eco-sustainable development
Groundwater provides 40% of the nation's public water supply and is used by over 40 million people through domestic wells, making it an important source of drinking water in every state. It is also a major source of irrigation water and represents a principal reserve of freshwater and potential future water supply. Groundwater contributes significantly to stream and river flows and influences wetland habitats.
Phy-hydel power
Hydroelectric power has been used throughout history by harnessing the energy from moving water. It has several advantages as a renewable source of energy including minimal pollution since no fuel is burned, water is provided naturally, and it helps reduce greenhouse gas emissions. While it uses a natural resource, hydroelectric power has relatively low operational costs and proven reliable technology over long periods of time.
Chem
Hard water is caused by dissolved minerals, mainly calcium and magnesium, that are picked up as water passes through soil and rock. It can interfere with cleaning tasks and leave films on fixtures. Permanent hardness cannot be removed by boiling and is caused by calcium and magnesium sulfates. While hard water does not pose health risks, it can cause nuisance problems like scale buildup and poor soap performance. Water becomes hard when it dissolves calcium and magnesium from geologic formations like limestone and dolomite during passage through the ground.
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Water is essential for all life and covers 70% of the Earth's surface, mostly in oceans. 1.6% is found underground in aquifers, while a tiny amount exists in plants, animals, and manufactured goods. Water recycling decreases extraction from dwindling sources and pollution of sensitive ecosystems. It also creates and enhances wetlands while reducing pollutants at treatment plants. Recycled water has been safely used for industrial, home, and agricultural non-potable needs, and this reuse is growing. Advances in treatment and health studies may soon enable planned indirect potable water reuse.
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Bio-recycling of water
- 3. Water is a common substance that is essential to all known forms of life. Water covers 70 percent of the planet’s surface. On the planet Earth water is mostly found in oceans and large bodies of water. 1.6percent of the earth’s water is found underground in aquifers. A tiny percentage of the world’s water is found in the bodies of plants and animals and in manufactured goods.
- 4. Water recycling decreases the extraction of water form sources that may be dwindling and may stop being viable as habitats for valuable and endangered wildlife. Recycling wastewater can decrease the discharge of effluents that may damage and pollute the ecosystems of the sensitive bodies of water. Recycled water can be used to create new wetlands or to enhance and improve the quality of existing ones. Water recycling can reduce and prevent pollution by leaving damaging pollutants at the treatment plant.
- 5. Recycling water has been established as an effective and safe way to provide non-potable water for a wide range of industrial, home, and agricultural use. The non-potable utilization of recycled water can only continue to grow. Technological advances in wastewater treatment and health studies in the use of indirect potable water have indicated the possible planned indirect potable reuse might soon become feasible.