What Is the Main Drawback of Seawalls

question 13

Multiple Choice

What is the main drawback of seawalls?

• A)They tend not to protect the seacliff very well.
• B)They stop the longshore transport of sand.
• C)They reflect wave energy back across the beach and cause erosion.
• D)They trap sand, forcing the ocean around the beach, where it erodes intensively.

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