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← GeographyWhich risk increases in karst regions when concentrated animal feeding operations (CAFOs) contaminate groundwater?
A)Accelerated sinkhole formation✓
B)Increased silica deposition
C)Decreased soil permeability
D)Amplified seismic activity
💡 Explanation
Accelerated sinkhole formation occurs via chemical weathering, because elevated livestock waste acidifies groundwater promoting carbonate dissolution. This dissolution widens underground fractures and cavities through carbonation, therefore cavities collapse to form sinkholes rather than other geological processes.
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