what is acid rain? how it occurs?
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1.Acid rains are the combination of carbonic acid, sulphuric acid, and nitric acid
2.Industrial waste gases contain sulphur dioxide, nitrogen oxide, and carbon dioxide when they are mixed with acid moisture they change to sulphuric acid, nitric acid and carbonic acid causing acid rain.
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Acid rain, also known as acid deposition, is caused by emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) from power plants, cars and factories. Natural sources like volcanoes, forest fires and lightning strikes also add to the man-made pollution. SO2 and NOx become acids when they enter the atmosphere and react with water vapor.
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