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← GeographyWhich outcome occurs more rapidly when sandstone bedrock undergoes increased hydraulic action?
A)Increased cliff base undercutting rates✓
B)Reduced sediment compaction timescales
C)Stabilized foreshore berm accretion
D)Accelerated submarine fan formation lifetime
💡 Explanation
Cliff base undercutting increases with greater hydraulic pressure because the increased force behind hydraulic action weakens the joints and bedding surfaces eroding the base rather than allowing sediment compaction or offshore deposit; therefore, there's increased cave creation near the waterline rather than accretion above it.
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