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← GeographyWhich consequence results when focused groundwater recharge interacts with limestone features?
A)Sudden sinkhole formation increases✓
B)Regional river baseflow decreases
C)Fracture permeability gradually declines
D)Aquifer water residence time falls
💡 Explanation
Increased groundwater recharge enhances dissolution of subsurface limestone because the process of carbonation weakens the rock, therefore expanding flow conduits. This amplifies sinkhole risk within karst regions exposed to variations in rainfall patterns, rather than merely affecting river flow or aquifer dynamics.
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