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← GeographyWhich process reduces island size when prevailing currents encounter irregular coastlines?
A)Differential wave refraction focuses energy✓
B)Isostatic rebound elevates previously submerged land
C)Eustatic sea-level increases sedimentation rates
D)Seafloor spreading creates wider continental shelves
💡 Explanation
Differential wave refraction causes increased erosion around headlands because wave energy concentrates there, shortening the coastline; therefore, islands shrink. Isostatic rebound involves uplift, rather than erosion, and eustatic changes alter sea level rather than focusing erosion in segments.
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