Acid rain, also known as acid deposition, is a general phrase that refers to any type of precipitation that contains acidic components, such as sulfuric or nitric acid, and falls to the ground in wet or dry form from the atmosphere. This can include acidic rain, snow, fog, hail, or even dust.
When sulphur dioxide (SO2) and nitrogen oxides (NOX) are released into the atmosphere and carried by wind and air currents, acid rain occurs. Sulfuric and nitric acids are formed when SO2 and NOX combine with water, oxygen, and other molecules. After mixing with water and other things, they fall to the earth.
While some of the SO2 and NOX that create acid rain come from natural sources like volcanoes, the majority of it comes from the combustion of fossil fuels. The following are the principal sources of SO2 and NOX in the atmosphere:
To generate power, fossil fuels are burned. Electric power generators are responsible for two-thirds of SO2 and one-fourth of NOX in the environment.
Vehicles and heavy machinery
Manufacturing, oil refineries, and other industries are just a few examples.
Acid rain is an issue for everyone, not just those who live near these sources, because wind may carry SO2 and NOX across great distances and across borders.