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Acid Rain
Acid rain -- Also called acid precipitation or acid deposition, acid rain is precipitation containing harmful amounts of nitric and sulfuric acids formed primarily by sulfur dioxide and nitrogen oxides released into the atmosphere when fossil fuels are burned. It can be wet precipitation (rain, snow, or fog) or dry precipitation (absorbed gaseous and particulate matter, aerosol particles or dust). Acid rain has a pH below 5.6. Normal rain has a pH of about 5.6, which is slightly acidic. The term pH is a measure of acidity or alkalinity and ranges from 0 to 14. A pH measurement of 7 is regarded as neutral. Measurements below 7 indicate increased acidity, while those above indicate increased alkalinityAcid Rain
Acid rain is carries the chemicals sulphur dioxide and nitrogen oxide
Acid "rain" isn't just rain; acid snow, acid fog or mist, acid gas, and acid dust all have the same effect as acid rain. poster yourself
![C900991[1]](http://im.glogster.com/media/1/6/56/37/6563702.jpg "C900991[1]")