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Question

Contamination of air by unwanted substances is called .

A
air utilisation
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B
air pollution
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C
air conservation
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Solution

The correct option is B air pollution
Air pollution refers to the contamination of air by unwanted substances. These contaminants have harmful effects on both living and non-living things.
For example, pollutants like oxides of sulphur causes respiratory problems in humans and causes damage to buildings or structures.

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