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Acid Rain

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A	B
sulphuric acid	Main cause of acid rain
Nitric acid	Causes some of the acid rain
acid rain	rain which has a pH in region of 4/5
nitrogen dioxide	NO2
sulphur dioxide	SO2
pollutants	substances which should not be present in the air
carbon dioxide	causes natural acidity of rain water
volcanoes	naturally produce SO2
ozone	a different form of oxygen

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