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← GeographyWhich outcome accelerates when saturated soil exceeds its shear strength on moderate arctic slopes?
A)Oxidation rates accelerate downstream
B)Solifluction lobe formation increases✓
C)Thermokarst subsidence decreases
D)Eolian deposition patterns weaken
💡 Explanation
When saturated soil exceeds its shear strength, solifluction occurs because the active layer thaws over impermeable permafrost, causing slow downslope flow creating terraced lobes. Therefore solifluction lobe formation increases, rather than oxidation, reduced thermokarst, or weakened eolian processes, which depend on different mechanisms.
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