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← GeographyWhich outcome occurs when decreased sea ice amplifies coastal erosion?
A)Increased wave energy exposure✓
B)Reduced isostatic coastal rebound
C)Decreased sediment deposition rates
D)Enhanced offshore permafrost stability
💡 Explanation
More open water creates greater fetch; the wave energy increases due to positive feedback. Sea ice loss causes greater erosive effect, rather than slower erosion. This increase is due to longer duration of ice-free conditions; therefore the wave fetch has a multiplicative effect.
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