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← GeographyWhich outcome results from increased carbonic acid production during soil respiration in karst regions?
A)Accelerated limestone dissolution forms wider conduits✓
B)Increased clay formation reduces soil permeability
C)Enhanced silicate weathering liberates cations
D)Decreased organic sedimentation fills existing caves
💡 Explanation
Increased carbonic acid enhances chemical weathering of limestone by increasing dissolution. This occurs because carbonate rocks react with carbonic acid, therefore forming wider networks of conduits and passages. Rather than B, C, or D, carbonate reactions influence karst features.
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