Ahhem hem hem... Basically, the word ACID RAIN is a broad term referring to a mixture of wet and dry deposition from the atmosphere containing higher than normal amounts of nitric and sulfuric acids. It has harmful effects on plants, aquatic animals, and infrastructure. primarily emissions of Sulfur dioxide (SO2) and nitrogen oxides (NO) resulting from fossil fuel combustion.
In fact, distilled water which contains no carbon dioxide, has a neutral pH of 7. Liquids with a pH less than 7 are acidic, and those with a pH greater than 7 are bases. “Clean” or unpolluted rain has a slightly acidic pH of about 5.2, because carbon dioxide and water in the air react together to form carbonic acid, a weak acid (pH 5.6 in distilled water), but unpolluted rain also contains other chemicals. Below is an exquation of formation of acid rain.
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