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State whether the following is true or false.
Debris accumulating at a cliff foot protects the cliff from further attack.

  • A.True
  • B.False
  • C.True only at large scales
  • D.False only at small scales

Answer: A

The talus absorbs wave energy that would otherwise reach the cliff base. Retreat resumes only once the material has been removed by the waves. Cliff retreat is episodic rather than steady. Long records are needed to establish an average rate.

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