Steep sea cliffs on erosional coasts are usually caused by .
A) exposure of these features due to a drop in sea level
B) deposition of large amounts of sediment by waves
C) glacial erosion
D) the collapse of undercut notches of exposed bedrock

Question

Quizplus · Accepted Answer

Steep sea cliffs on erosional coasts are typically formed by the collapse of undercut notches of exposed bedrock, where waves erode the base of the cliff, causing the upper sections to become unstable and eventually collapse.

Steep Sea Cliffs on Erosional Coasts Are Usually Caused by