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← GeographyWhich risk markedly increases when permafrost thaw intensifies solifluction processes on a sloping tundra landscape?
A)Reduced biodiversity due to soil layering disruption
B)Increased methane emissions from melting hydrates
C)Infrastructure damage from flow lobe formation✓
D)Decreased albedo from forest encroachment
💡 Explanation
When permafrost thaws and intensifies solifluction, freeze-thaw action weakens sediments, leading to soil creep and the formation of solifluction lobes which exert significant force. Therefore infrastructure damage results, rather than changes to biodiversity, emissions, or landscape-driven albedo change; these depend on different factors.
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