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← GeographyWhich erosional outcome is accelerated alongside existing sea stacks when increased storm surge occurs?
A)Increased wave base downcutting
B)Enhanced hydraulic action undermining✓
C)Decreased isostatic rebound rates
D)Accelerated chemical weathering processes
💡 Explanation
Increased storm surges enhance hydraulic action undermining because they deliver more powerful waves that compress air in cracks causing widening and stack collapse; therefore, weakening occurs due to physical force, rather than chemical or isostatic changes.
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