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← GeographyWhich risk increases for Arctic infrastructure during seasonal thaw?
A)Destabilization due to solifluction processes✓
B)Increased methane hydrate formation
C)Accelerated salt weathering of concrete
D)Erosion from glacial outburst floods
💡 Explanation
Infrastructure destabilization risks increase because seasonal thaw triggers solifluction, the gradual downhill creep of saturated soil due to freeze-thaw action. Therefore, ground supports weaken, rather than methane formation, which requires specific pressure conditions.
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