Answers

2014-08-04T22:55:14+05:30
It is the introduction of particulates, biological molecules or other harmful materials in earth's atmosphere.
It can cause diseases like Asthma or can damage any other living organism.
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2014-08-04T23:34:48+05:30
The substances which pollutes the air of our environment are known as air pollutants. Some of the air pollutants are the smoke which comes from chimneys and by burning fire crackers.
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