An imaginary line below which a stream cannot erode is called
A)ground level.
B)sea level.
C)lake level.
D)base level.

Question

Quizplus · Accepted Answer

The term "base level" refers to the lowest point to which a stream can erode its channel. This is often sea level for streams that eventually flow into the ocean, but it can also be the level of a lake, resistant rock layer, or another stream into which the stream flows.

An Imaginary Line Below Which a Stream Cannot Erode Is