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← GeographyWhich outcome occurs when hydraulic action erodes steep sea stack faces?
A)Stack collapse increases sediment delivery✓
B)Dissolution rates rise along stack flanks
C)Isostatic rebound uplifts remnant materials
D)Haloclines intensify due to salinity variation
💡 Explanation
Hydraulic action weakens the base by physical wave impact because pressurized water enters cracks, therefore cliff collapse intensifies sediment transport, rather than changing chemical or isostatic balances unrelated to wave mechanics.
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