ASSERTION: The Rivers coming from northern mountains in the lower course the velocity of the rivers decreases. REASON: Gentle slopes results in the formation of riverine islands
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Answer:
A is true but R are false
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Answer: (A) is correct but (R) is wrong.
- The assertion that rivers coming from northern mountains in the lower course tend to be slower is correct.
- The rivers coming from northern mountains descend from a very high elevation and hence flow at a very high velocity.
- Hence, the velocity decreases as the descent moderates and the gradient in slope is low. Therefore the low velocity is a consequence of the descent in slope.
- On the other hand, the formation of a riverine island is an entirely different question which is a consequence of the speed of the river downstream not a reason or cause for it.
- Therefore the answer is (A) is correct but (R) is wrong.
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