Multiple choice

Directions: The following items consist of two statements, one labelled as 'Assertion (A)' and the other labelled as 'Reason (R)'. You are to examine these two statements carefully and decide if the Assertion (A) and the Reason (R) are individually true and if so, whether the reason is a correct explanation of the Assertion. Select your answer to these items using the codes given below. Assertion (A) : A river system can continue to cut down its valleys to approximately the same rate as uplift and so maintains its general pattern and direction. Reason (R) : In case of an antecedent drainage system, the river is said to have originated before a period of uplift and folding of land as a result of earth movement.

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

  2. Both A and R are correct 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
B Correct answer
Explanation

Both the Assertion and Reason are true statements about antecedent drainage. However, the Reason (R) is not the correct explanation of the Assertion (A). The Assertion discusses how rivers maintain their pattern during uplift, while the Reason describes the origin of antecedent rivers - these are related but R does not directly explain A.

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