Civil Services Prep

Prelims MCQ · Geography

Consider the following Assertion and Reason:

Assertion (A): The horns of a barchan point broadly in the direction of the prevailing wind, and the dune migrates forward.

Reason (R): Sand is driven up the gentle windward slope and falls down the steep sheltered slip face after crossing the crest.

Which one of the following is correct?

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