What is acid rain?



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    Acid rain is a combination of wet and dry substances that contain more nitric and sulfuric acids than usual. Acid rain can occur naturally through volcanic eruptions as well as decaying vegetation. Man-made acid rain usually is a result of too much sulfur dioxide and nitrogen oxide emissions from fossil fuel combustion. Most often the acid rain will be relatively mild and not always very damaging, yet still above average levels of toxicity. 

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