Given below are two statements, one labelled as Assertion (A) and the other as Reason (R). In the light of the above statements, choose the correct answer from the options given below.
Assertion (A):Many human activities increase both the severity and frequency of floods.
Reason (R):Paved roads and parking lots increase water infiltration into the soil and slow down the rate of run-off into streams and lakes.
ABoth A and R are correct and R is the correct explanation of A
BBoth A and R are correct but R is not the correct explanation of A
CA is correct but R is not correct ✓ Correct
DA is not correct but R is correct
Correct answer: (C) A is correct but R is not correct
Explanation
Human activities such as clearing vegetation, draining wetlands and paving surfaces genuinely raise both the severity and frequency of floods.
The reasoning about paved surfaces is faulty because roads and parking lots are impervious.
Such hard surfaces reduce infiltration into the soil rather than increasing it.
They also speed up runoff into streams and lakes instead of slowing it, worsening flood peaks.
The assertion stands on its own but the reason misstates how paving affects water.
Restoring wetlands and permeable ground helps absorb rainfall and lowers flood risk.
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