V-shaped stream valleys result from the downcutting of stream erosion and ____________.
A)mass wasting on the valley sides
B)isostatic rebound
C)the "rule of the V's"
D)conservation of angular momentum

Question

Quizplus · Accepted Answer

V-shaped stream valleys are created through the process of downcutting by stream erosion. As the stream erodes downwards, the valley sides become steepened and unstable, creating ideal conditions for mass wasting (such as landslides) to occur. Thus, V-shaped valleys often have steep, rocky sides due to the combination of downcutting and mass wasting. Isostatic rebound, the "rule of the V's", and conservation of angular momentum do not play significant roles in the formation of V-shaped stream valleys.

V-Shaped Stream Valleys Result from the Downcutting of Stream Erosion