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← GeographyWhich mechanism exacerbates infrastructure collapse above karst terrain?
A)Preferential dissolution along bedding planes✓
B)Oxidation weakening clay mineral grains
C)Erosion expanding surface drainage networks
D)Biogeochemical methane hydrate destabilization
💡 Explanation
Infrastructure placed on karst is prone to collapse because **preferential dissolution** widens pre-existing fractures resulting caverns; therefore rapid subsidence occurs rather than gradual settlement typical from soil consolidation.
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