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Q: Which process takes place during the youthful stage of a river?
  • A. Valley widening
  • B. River rejuvenating
  • C. Valley deepening
  • D. Meandering
Correct Answer: Option C - During youthful state of river, as it comes from mountains so its flow is at a high rate due to difference of altitude and due to this fast flow it continues the process of valley deepening.
C. During youthful state of river, as it comes from mountains so its flow is at a high rate due to difference of altitude and due to this fast flow it continues the process of valley deepening.

Explanations:

During youthful state of river, as it comes from mountains so its flow is at a high rate due to difference of altitude and due to this fast flow it continues the process of valley deepening.