Question

Depending upon the extent of incision and denudation occurred during the formation of a valley, how many broad classes of valleys are present?

(a) 2

(b) 4

(c) 3

(d) 5

The question was asked in unit test.

Asked question is from Valleys topic in division Physiographic Features of Engineering Geology

Answer 1

Correct option is (c) 3

To explain: The nature of the valley profile at any section in the course of a river depends on the ratio Incision: Denudation operating in that section. Three broad cases may be considered. Saw cut valleys; V-shaped valleys and flat-floored valleys.