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← GeographyWhich mechanism accelerates topsoil erosion on loess plains?
A)Sheet flow exceeding infiltration capacity✓
B)Oxidation enhancing particle aggregation
C)Cryoturbation reduces soil cohesion
D)Capillary action increases sediment density
💡 Explanation
Topsoil erosion accelerates when sheet flow exceeds the infiltration capacity of the loess because overland flow detaches and transports soil particles; high silt content exacerbates this, therefore erosion increases rather than diminished due to cohesion or density increases.
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