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← GeographyIncreased coastal erosion results where coastal straightening occurs because of which effect?
A)Wave energy focusing: refraction concentrates energy✓
B)Reduced sediment supply: trapping updrift dams
C)Sea-level rise acceleration: thermal expansion dominance
D)Stronger wind stress: intensified offshore winds
💡 Explanation
Coastal straightening leads to wave energy focusing due to wave refraction, concentrating wave energy at headlands; therefore, erosion increases preferentially at these points, rather than due to altered sediment supply or rising sea levels because those are independent factors.
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