Acid rain is a serious environmental problem that can have devastating effects on ecosystems and human health. It is caused by the release of sulfur dioxide and nitrogen oxides into the atmosphere, which react with water, oxygen, and other chemicals to form sulfuric acid and nitric acid. These acids can then fall to the ground in rain, snow, or fog, or they can be deposited on surfaces as dry particles.
Acid rain can damage forests, lakes, and streams, and it can also contribute to the formation of smog and other air pollution problems. It can also damage buildings and infrastructure, and it can even have negative effects on human health. Children, the elderly, and people with asthma are particularly vulnerable to the effects of acid rain.