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← GeographyWhich outcome results when calcium carbonate rock undergoes karstic dissolution?
A)Formation of sinkholes and caves✓
B)Deposition of alluvial mineral placers
C)Increased CO2 sequestration by silicates
D)Development of stratified soil horizons
💡 Explanation
Sinkholes form because carbonic acid from rainwater weathers the bedrock via dissolution; dissolution removes the calcium carbonate, thereby creating voids in the geology rather than resulting in stratified soils or alteration of silicates.
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