Why Does Seacliff Erosion Occur at High Rates in Some

Why does seacliff erosion occur at high rates in some areas?

A) Because wave action is particularly strong on coastlines with seacliffs.
B) Seacliffs tend to be made of very weak Earth materials.
C) Littoral transport removes Earth materials from the seacliffs.
D) The seacliff may be exposed to both wave action and terrestrial mass wasting processes.