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← GeographyWhich outcome rapidly occurs in coastal bluff systems experiencing toe erosion?
A)Increased frequency of rotational block slides✓
B)Stabilization due to reduced slope angle
C)Formation of extensive sandy beach terraces
D)Enhanced vegetation cover on upper slopes
💡 Explanation
Rotational block slides increase because toe erosion removes basal support and destabilizes the bluff. This causes increased shearing stress along concave-upward slip surfaces (rotational failure), therefore mass wasting accelerates rather than self-stabilizes or forms new landforms.
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