|Acid Rain 8
Acid Rain is a type of air pollution, which is formed when oxides of sulfur and nitrogen combine with atmospheric moisture to yield sulfuric and nitric acids, which may then be carried long distances from a source before they are deposited by rain. This pollution may also take the form of snow, fog, or a dry form of precipitation. Acid rain is currently a subject of great controversy because of widespread environmental damage, for which it has been blamed, including eroding structures, injuring crops and forests, and threatening or depleting life in freshwater lakes.
The problem of acid rain originated during the Industrial Revolution, and has been growing ever since. The severity of its effects has long been recognized in local settings, exemplified by the spells of acid smog in heavily industrialized areas. The widespread destructiveness of acid rain, however, has become evident only in recent decades. One large area that has been studied extensively is northe...