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← GeographyWhich outcome arises when diurnal freeze-thaw cycles saturate alpine soils?
A)Formation of solifluction lobes downslope✓
B)Increased eolian dust accumulation locally
C)Stabilization of soil aggregates chemically
D)Enhanced infiltration rates vertically upward
💡 Explanation
Saturated soil reduces frictional resistance; therefore, solifluction initiates downhill creep because freeze-thaw cycles cause pore water expansion, rather than wind accumulation or chemical stabilization, which work against destabilization under different conditions.
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