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← GeographyWhich outcome commonly occurs when rapid groundwater extraction lowers water tables near limestone caves?
A)Increased karst sinkhole formation✓
B)Accelerated speleothem growth
C)Enhanced cave ecosystem stability
D)Decreased calcite deposition rates
💡 Explanation
Increased karst sinkhole formation results from groundwater removal because the mechanism of hydraulic support decreases, weakening the cave's structure. This leads to more collapses and sinkholes at the surface, therefore promoting more rapid sinkhole formation, rather than speleothem growth, which needs a stable water supply.
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