Acid rain is caused because of the oxides of sulfur and nitrogen which combine with the moisture present in the atmosphere to form acids like sulfuric acid and nitric acid.
These acids can spread to various places via rain and so, the term acid rain emerges.
Sulfur dioxide is a colorless gas, which is released when sulfur containing fossil fuels are burned.
Various industrial progression such as developing crude oil, steel factories and iron factories are responsible for release large amount of sulfur dioxide.
It can also be released due to some natural means like rotting vegetation, plankton, volcanoes or sea spray etc.
An overall representation shows that about 10 percent of gas is emitted as a result of natural disaster, another 69.
4 percent is released due to industrial combustion and rest 3.
7 percent is emitted because of emission from vehicles.
Nitrogen oxide is released in the firing processes that are done in tremendously high temperatures.
Such high temperatures are utilized in all utility plants, vehicles and also in the chemical industries that produce fertilizers.
Reports say that about 32 percent of nitrogen oxide is emitted due to industries around 5 percent is released because of natural means like volcanoes, lightning, forest fires and action of few bacteria that live in the soil.
The remaining 43 percent is attributed to the vehicular transportation.
Acid rain has adverse effects in the plant life, aquatic life, man made objects and ultimately on human being.
An imbalance in the atmospheric pH level is bound to cause problems to all living things in the earth.