Bluffs that are protected by human additions, or completely lost from erosion, remove the sediment source for the nearby beaches because they will begin to erode and deteriorate back until the beach is lost.
Bluffs remove the sediment source for the nearby beaches. These Bluffs are protected by human additions. These Bluffs are lost from erosion. They will begin to erode. Bluffs deteriorate back. These Bluffs are protected by human additions. These Bluffs are lost from erosion. The beach is lost.