What is the process by which a river lengthens its course upstream called?
A. Downcutting
B. Headward erosion
C. Meandering
D. Braiding
Answer: Option B
Solution (By Examveda Team)
Headward erosion is the extension of a river's source area upstream through erosion.It increases the drainage basin size.This Question Belongs to Geological Engineering >> Geomorphology And Surface Processes
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