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← GeographyWhich coastline change occurs when wave refraction concentrates energy unevenly?
A)Formation of sea stacks occurs✓
B)Barrier island stability increases slowly
C)Longshore drift halts offshore completely
D)Sediment deposition becomes more even
💡 Explanation
Sea stacks appear because differential erosion occurs due to varying wave energy concentration; this is controlled by wave refraction. This wave refraction causes focused erosion rather than even deposition or stabilized islands. Longshore drift continues, therefore does not halt as suggested.
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