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← GeographyWhich increased geohazard results as permafrost temperatures rise?
A)Increased infrastructure damage from thermokarst✓
B)More frequent volcanic eruption events
C)Reduced rates of glacial calving
D)Stabilization of subsurface methane clathrates
💡 Explanation
A rise in temperature causes thawing permafrost, leading to thermokarst. This thaw weakening is an example of thermal degradation as the soil loses structural integrity; therefore infrastructure will become more unstable rather than stabilized by colder soils.
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