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← GeographyWhich ground subsidence risk increases when concentrated rainwater flows into limestone fractures?
A)Accelerated sinkhole formation rate✓
B)Increased seismic wave propagation
C)Decreased soil infiltration capacity
D)Enhanced carbon sequestration efficiency
💡 Explanation
The risk of sinkholes increases because concentrated rainwater enhances chemical weathering, via dissolution, which directly erodes the soluble limestone bedrock. This process creates subsurface voids that destabilize the overlying ground therefore sinkholes increase in frequency, rather than other geological changes.
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