is polluted rain. The pollutants go up to the atmosphere and when it rains it brings the pollution down with it. Sulfur dioxide and nitrogen oxide are the gases that form the . When these gases mix with moisture it can make rain, snow, hail, or even fog. The scientific term for is acid deposition which means when the acid is taken from the air and is deposited on the earth. Major industries, coal burning factories, power plants and automoble engines are the main sources of sulfur dioxide and nitrogen oxide which caues acid rain. Volcaneo ....