What do dams and levees do to the rate of natural subsidence in coastal deltas?
A)They increase the rate of subsidence.
B)They decrease the rate of subsidence.
C)They do not influence the rate of subsidence.
D)Scientists are not certain how they affect the rate of subsidence.

Question

Quizplus · Accepted Answer

Dams and levees can increase the rate of natural subsidence in coastal deltas by preventing the natural flow of sediment that would otherwise replenish and build up the delta landmass. This sediment is crucial for counteracting the natural settling and compacting of delta soils. Without new sediment deposits, the land can sink more rapidly.

What Do Dams and Levees Do to the Rate of Natural