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← GeographyWhich risk markedly increases within deep karst caves upon prolonged, widespread surface pavement?
A)Accelerated speleothem erosion rate✓
B)Decreased CO2 concentration gradients
C)Enhanced subterranean ecosystem stability
D)Expanded vadose zone water residence
💡 Explanation
A rapid recharge from pavement delivers undersaturated water, therefore enhanced dissolution occurs by the mechanism of increased carbonic acid weathering reducing speleothem stability and leading to erosion, rather than the other effects caused by differing water flow.
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