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← GeographyWhich feedback results when increased rainfall saturates soluble carbonate bedrock?
A)Accelerated sinkhole formation and karstification✓
B)Decreased stream baseflow via recharge
C)Reduced chemical weathering equilibrium rates
D)Increased surface albedo, lower temperature
💡 Explanation
Increased rainfall in carbonate regions leads to accelerated sinkhole development through dissolution. Saturation of the bedrock heightens chemical weathering rates via **positive feedback**, because newly formed pathways enhance fluid flow rather than inhibiting weathering. Therefore sinkholes appear rapidly.
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