Assertion :Pollution is always caused by human activities. Reason: Pollution is not different from contamination.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is D Both Assertion and Reason are incorrect.
Pollution is defined as an undesirable change in the quality of an environment causing harmful effects on living organisms. It can be natural or man-made. Natural pollution includes volcanic eruptions, soil erosion, UV rays etc. and man-made like burning of fossil fuel, waste disposal, industrialization etc.
Contamination is the presence of harmful organisms causing disease.
Therefore, the correct answer is option D.

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