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← GeographyWhich consequence results when permafrost thaws excessively after deforestation?
A)Widespread solifluction and slope destabilization✓
B)Increased rates of chemical weathering
C)Formation of expansive alluvial fans
D)Accelerated thermohaline circulation slowdown
💡 Explanation
Deforestation can expose permafrost, leading to thawing and increased soil moisture which weakens the soil’s shear strength. Because increased moisture and reduced strength facilitate soil creep downslope via solifluction, widespread slope destabilization occurs, therefore resulting in mass wasting rather than the slower weathering or fluvial processes.
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