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Acid rain 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 acid rain.
When these gases mix with moisture it can make rain, snow, hail, or even fog.
The scientific term for acid rain 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 automobile
engines are the main sources of sulfur dioxide and nitrogen oxide which
causes acid rain. Volcanoes and forest fires also cause sulfur dioxide
and nitrogen oxide.
Some of the many problems that come from acid rain are the killing
of many plants and underwater life in thousands of lakes and streams
around the world. It strips forest soils of nutrients and damages farm
crops. Acid rain can also corrode stone buildings, bridges, and
priceless monuments. Acid rain can also be harmful to homes, and
the acid can release lead in the pipes and the lead could go into our
drinking water. It is hard to determine where acid rain may fall next
because the wind from a polluted area could carry pollution to another
area and the acid rain could fall there.
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