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← GeographyNear a volcanic island, which process dominates coastal erosion after repeated lava delta collapses?
A)Wave refraction concentrates energy✓
B)Sea level rise accelerates inundation
C)Salt weathering weakens rock faces
D)Biological activity destabilizes sediments
💡 Explanation
Wave refraction focuses energy on headlands created by the lava flows surrounding more resilient materials leading to localized erosion, because of the refraction concentrates impact. Therefore wave refraction, rather than the other options, quickly reshapes coastlines after eruptions.
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