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Eng Book- Soil Pollution- Download Free PDF


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Soil pollution is defined as the build-up in soils of persistent toxic compounds, chemicals, salts,
radioactive materials, or disease causing agents, which have adverse effects on plant growth and animal
health.
Soil is the thin layer of organic and inorganic materials that covers the Earth's rocky surface.
The organic portion, which is derived from the decayed remains of plants and animals, is concentrated
in the dark uppermost topsoil. The inorganic portion made up of rock fragments, was formed over
thousands of years by physical and chemical weathering of bedrock. Productive soils are necessary for
agriculture to supply the world with sufficient food.
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