Hey guys can u ask some questions of science class 8 , tomorrow is my test i want ti practice.The chapters are crop production,microorganisms and water and air pollution
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1) Give two examples of Rabi and Kharif crops.
2) Define food crops and cash crops with examples.
3) What is acid rain ? How is acid rain caused ?
4) Define water pollution?
5) How can we prevent water pollution ?
2) Define food crops and cash crops with examples.
3) What is acid rain ? How is acid rain caused ?
4) Define water pollution?
5) How can we prevent water pollution ?
titu112:
acid rain - the Sulphur oxide and nitric oxide mixed with water vapour and from sulphuric acid and nitric acid that is drop down by the rain making rain acidic and form acid rain.
the contamination of harmful substances in water bodies by industrial, agricultural and domestrical activities form water pollution.
Bye using water treatment plant for purification of sewage water.
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