Multiple choice

Assertion A: The frequency of floods in north Indian plains has increased during the last couple of decades. Reason R: There has been a reduction in the depth of river valleys due to deposition of silt.

  1. Both A and R are true and R is the correct explanation of A.

  2. Both A and R are true, but R is not the correct explanation of A.

  3. A is true, but R is false.

  4. A is false, but R is true.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Siltation is the process of deposition of silt on the river bed through dam water.

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