Which risk increases when saturated soil undergoes thaw cycles on a moderate slope in periglacial tundra?

💡 Explanation

When saturated soil thaws superficially, solifluction occurs due to the reduced shear strength of the thawed layer over the frozen permafrost, leading to downslope movement and formation of solifluction lobes. Therefore accelerated lobe formation results rather than methane release, decreased albedo, or mineral weathering which involve different environmental factors.

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