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Which weathering product accelerates karst topography development in limestone formations?

A)Carbonic acid dissolution by recharge
B)Fracture sealing via clay deposition
C)Sulfate precipitation from hydrothermal vents
D)Silica cementation from groundwater upwelling

💡 Explanation

Carbonic acid enhances karst formation due to chemical weathering; increased levels means expedited dissolution. This is because dissolution widens fractures, therefore rainwater is channeled through, rather than surface flow that spreads slower.

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