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Question
Consider the following statements regarding the upper course of a river:

  1. This begins at the very source of the mountain range.

  2. Here the predominant action of the river is vertical corrosion.

  3. The valley developed is V-shaped.


Choose the correct option from the codes given below:
Options:
A .  1 and 3
B .  1 and 2
C .  1, 2 and 3
D .  2 and 3
Answer: Option C
Answer: (c)
The upper course of a river begins at the very source of the mountain range. In the upper course of a river gradients and steep and river channels are narrow.
Vertical erosion is the greatest of a river.

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