Sulfur Dioxide and Nitrogen Oxide.
2.) What is the source of much of the acid rain producing gases in Pennsylvania?
High sulfur coal burned in power plants.
3.) Briefly explain how acid rain forms.
Acid rain forms when sulfur dioxide and nitrogen oxides in the atmosphere combine with water to form sulfuric acid and nitric acid, respectively. These acids, mixed with rainwater, fall to the Earth as acid rain.
