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← GeographyWhich outcome rapidly occurs when the hydraulic load on epikarst diminishes?
A)Exposure of mature Karst aquifers
B)Increased rates of surface erosion
C)Accelerated sinkhole collapse frequency✓
D)Reduced speleothem formation rates
💡 Explanation
Accelerated sinkhole collapse increases because lessened head pressure diminishes buoyant force inside voids; this is known as mechanical weathering creating instability. Increased sinkholes arise, therefore, rather than mere erosional changes, because the pressure regime is more critical.
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