Various activities that make air impure
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1) Vehicles emitting a large amount of smoke
2) Factories giving out a large amount of dangerous gases without treating them
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Air become impure due to the suspension dust particles and particles of toxic substances.
Air become impure due to burning of fossil fuels.
Industry are the main source of air pollution. Industrial activities discharge air pollutants
Air become impure due to agricultural activities.
Also the vehicles produce poisonous gas to the environment.
In this way air become impure.
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