Seawalls are commonly used to stop shoreline retreat.  Which of the following is a negative consequence of building a seawall?

A. loss of the beach at high tide
B. unwanted deposition on the down-drift side
C. creates a beach composed of very coarse particles
D. are costly and must be periodically rebuilt
E. unwanted deposition on the up-drift side


Answer: A

Environmental & Atmospheric Sciences

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