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← GeographyWhich consequence results when thermal expansion weakening occurs in sea cliffs?
A)Increased abrasion, wave-cut platform growth✓
B)Enhanced dune stabilization, sediment accretion
C)Decreased albedo leading to warming
D)Reduced groundwater saltwater intrusion mitigation
💡 Explanation
Increased abrasion and wave-cut platform growth occurs due to a positive feedback; thermal weakening facilitates weathering. This mechanical weathering degrades cliff structure, increasing sediment yield available for coastal abrasion, because wave energy is thus focused on weakened zones, rather than dune accretion.
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