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← GeographyWhich pedogenic outcome reduces slope instability following intense rainfall events?
A)Increased soil infiltration capacity✓
B)Decreased organic matter content
C)Enhanced clay particle dispersion
D)Reduced soil aggregate stability
💡 Explanation
Bioturbation by earthworms increases soil macropores, causing enhanced infiltration capacity because networks create preferential flowpaths; therefore, quick rain infiltration stabilizes slopes, rather than surface runoff, which contributes to erosion and landslides.
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