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← GeographyWhich long-term landscape change accelerates sinkhole formation by groundwater?
A)Anthropogenic aquifer depletion increases effective stress✓
B)Sea-level rise reduces hydrostatic ground pressure
C)Glacial isostatic rebound closes fissures
D)Increased snowmelt reduces carbonic acid
💡 Explanation
Increased aquifer depletion causes sinkholes because effective stress increases, favoring mechanical weathering and collapse within karst formations. This exceeds limestone's shear strength and accelerates cave-in, therefore the correct answer involves depletion, rather than increasing groundwater levels.
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