Question

what is meant by air pollution ?
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Answer 1

Explanation:

Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog. Some air pollutants are poisonous.

Answer 2

Answer:

air pollution is a harmful process where the toxic substances released  by the industries , vehicles , etc.... mixes with the pure air.