The process of deepening of a valley by erosion of a streambed is called __.
A) lateral erosion
B) down cutting
C) faulting
D) aggradation
E) subsidence

Question

Quizplus · Accepted Answer

Down cutting is the process of erosion by a stream that deepens its channel, often resulting in the formation of a V-shaped valley. Lateral erosion refers to the widening of a valley by a stream, while faulting, aggradation, and subsidence all refer to different geological processes unrelated to the erosion of a streambed.

The Process of Deepening of a Valley by Erosion of a Streambed