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← GeographyWhich result occurs to infrastructure when permafrost thaws, increasing rates of solifluction?
A)Increased methane hydrate formation
B)Differential ground subsidence✓
C)Accelerated chemical rock weathering
D)Decreased coastal erosion rates
💡 Explanation
When permafrost thaws, increased water saturation reduces soil strength via solifluction because downslope movement accelerates on slopes, driven by gravity. Therefore differential ground subsidence results, rather than hydrate formation, rock weathering, or decreased erosion, each of which require different environmental preconditions.
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