Q. 83.9( 7 Votes )

What is air pollution? How is it caused? Give its effects.

Answer :

An increase in content of harmful substances like oxides of nitrogen and suphur from fossil fuels, hydrocarbons, etc in air is called air pollution. Basically, icrease of any unwanted substance in the air is air pollution.


Air pollution may be caused by burning of fossil fuels like coal and petroleum that release nitrogen and sulphur. These nitrogen and sulphur molecules form oxides of nitrogen and sulphur in air and later fall as acid rain too. Smog from combustion of fossil fuels also a cause of air pollution.


Effects of air pollution can be very lethal. When polluted air is breathed it results in allergies, cancer, bronchitis and other heart diseases.


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