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← GeographyWhich outcome occurs when thawing overburden destabilizes Arctic slopes?
A)Increased solifluction rate✓
B)Accelerated stream incision
C)Enhanced chemical weathering
D)Reduced sediment transport
💡 Explanation
Increased solifluction results, because permafrost thaw causes a decrease in soil shear strength and increases moisture content, therefore increasing downslope movement rates rather than stabilizing sediments; the driving mechanism is reduction in shear strength.
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