Assertion :Sewage, industrial effluents, and wastewater are non-point sources of water pollution. Reason: Surface runoff is point source of water pollution.

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
Pollutants of water may be divided into point sources and non-point sources.
A point source is an identifiable source of pollution. For example a drain.
A non-point source is not a single source in itself.
They are attributed to a wide area. So, sewage and industrial wastes are on point sources.
Surface runoff is also, not a point source. It leads to the discharge of any kind of pollutant in water which is present over the surface like sewage waste, plastic waste, and other wastes in water sources. So, it is not a single source of water pollution. As a result, it is a non-point source.
So, option D is the correct answer.

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Choose the correct option.

Assertion (A) Boiling points of alcohols and ethers are high.
Reason (R) They can form intermolecular hydrogen-bonding.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
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(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

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