What exactly are air pollutants?

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Substances that escape the environment quickly and are harmful to health are called air pollutants.

Substances that mix up with the air and are injurious to health and cause inconvenience to animals and plants are called air pollutants.

Substances that help in the growing of trees are called air pollutants.

Substances that mix in clean water and cannot be easily removed are called air pollutants.

answer is B.

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Detailed Solution

Substances that mix up with the air and are injurious to health and cause inconvenience to animals and plants are called air pollutants.

Any physical, chemical or biological alteration in the air is referred to as air pollution.
For example, in thermal power plants, burning coal releases sulfur dioxide and nitrogen oxides that cause air pollution, and they contribute to global warming.

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