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प्रश्न
Assertion (A): Deposition is the main action which takes place in the upper course of the river.
Reason (R): The journey of the river in the mountains is called its upper course.
विकल्प
Both A and R are true and R is the correct reason for A.
Both A and R are true but R is not the correct reason for A.
A is true and R is false.
A is false and R is true.
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उत्तर
A is false and R is true.
Explanation:
Deposition is not the main action in the upper course of a river; rather, erosion is dominant there. The upper course of a river is indeed the journey of the river in the mountains, characterized by steep gradients and strong flow that causes erosion. Deposition mainly occurs in the lower course where the river loses energy. Hence, the assertion is false, but the reason is true.
