Which of the following may act as a local base level?
A)A lake that a river flows into
B)An interfluve
C)The upper surface of a waterfall
D)A drainage divide

Question

Quizplus · Accepted Answer

A lake that a river flows into can act as a local base level because the river cannot erode the lake bed, so it erodes backwards along the river channel until it reaches the lake. This sets the limit for how far upstream the river can erode. An interfluve, a drainage divide, or the upper surface of a waterfall do not act as base levels.

Which of the Following May Act as a Local Base