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Geography

Which outcome occurs when saturated glacial sediments experience permafrost thaw?

A)Increased downslope soil mass wasting
B)Accelerated chemical weathering of bedrock
C)Decreased stream sediment discharge rates
D)Enhanced aeolian sediment redistribution

💡 Explanation

Increased downslope soil mass wasting will occur. Solifluction, the gradual downslope movement of water-saturated soil, increases because permafrost thaw reduces soil shear strength; therefore sediment destabilizes, rather than rock weathering increasing far from glacial zones.

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