What kind of substances are contaminants?

Unwanted substance

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Wanted substance

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Contained substance

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Useful substance

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Solution

The correct option is A
Unwanted substance

A contaminant is an unwanted substance which has harmful effects on the environment. Presence of these substances in environment effects both living and non-living things.

For example, smoke is a contaminant present in air, pesticides and fertilisers used in agriculture are contaminants present in water and soil respectively.

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Similar questions

The substances which contaminate air are called __________.

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