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← GeographyWhich pedogenic effect on soil formation occurs predominantly due to freeze-thaw weathering?
A)Increased soil macroporosity✓
B)Elevated nutrient mineralization
C)Enhanced clay particle translocation
D)Decreased soil organic matter
💡 Explanation
Increased macroporosity results as ice lenses form and expand during freeze-thaw cycles, causing aggregate disruption via cryoturbation; therefore larger pore size is the pedogenic effect, rather than smaller mineral translocation because ice expansion drives apart soil components.
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