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How is acid rain caused?

User Xhinking
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Acid Rain is a result of chemical compounds, like sulfur dioxide and nitrogen oxide, are released into the air. These compounds rise high into the atmosphere and react with the different elements and compounds in the air, such as oxygen and water. This reaction forms acidic pollutants and eventually fall back to the ground as acid rain. This phenomenon is attributed to industrial waste; and it was especially common in the wake of the Industrialization Era of the United States.

User Tibox
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