A) Domestic exhaust
B) Automobile exhaust
C) Thermal power plants
D) Burning of cooking gas
Correct Answer: B
Solution :
[b] The major cause of air pollution in big cities is automobile exhaust. The automobiles alone contribute about 60% of the air pollution through the release of compounds like carbon monoxide, nitrogen oxides and unburnt hydrocarbons.You need to login to perform this action.
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