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← GeographyWhich pedogenic effect accelerates when increased freeze-thaw cycles fracture exposed bedrock?
A)Differential mineral settling
B)Heightened chemical weathering✓
C)Regolith stabilization via clay
D)Reduced pedosphere permeability
💡 Explanation
Increased freeze-thaw promotes mechanical weathering, increasing the surface area exposed to chemical alteration. More chemical reactions happen because reactant surface area is amplified via fracture, therefore weathered products increase faster, rather than just accumulating mechanically.
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