Acid rain is a term that refers to not just rain but also other forms of precipitation such as snow, hail, sleet, and fog that has a higher acidity than normal. Acid rain is caused by the burning of ...
As pollution and sulfuric acid choked North American skies in the 1970s and 80s, a bipartisan, transnational agreement spearheaded by the Environmental Protection Agency combatted acid rain, which ...
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