Acid rain

Acid rain is caused primarily by the burning of fossil fuels, such as coal, in power plants. The emissions from those fuels result in a reaction high in the atmosphere where the chemicals, namely sulfur dioxides (SO2) and nitric oxides (NOX), bind with moisture, creating a solution of sulfuric acid and nitric acid that then falls to earth as rain or snow.Acid rain causes a cascade of effects in coldwater environments that harm or kill individual fish, reduce fish population numbers, completely eliminate fish species from a body of water, and decrease biodiversity altogether.

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What is acid rain? How does it affect fish populations and their habitat?

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