Answers

2014-10-26T13:24:07+05:30
Air which is polluted or which goes bad due to smoke from vehicles,factories etc. 
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2014-10-26T13:32:30+05:30
Air that contains harmful and bad substances is known as polluted air. Like when the smoke from factories ,vehicles ,burning of fuel ,paper etc . added in the air the air gets polluted it is known as the pollution of air.
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