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← GeographyWhich mechanical effect primarily results when earthworm populations accelerate bioturbation inside loess deposits?
A)Increased soil structural aggregate destruction
B)Elevated seismic liquefaction vulnerability✓
C)Decreased slope mass wasting stability
D)Reduced carbon sequestration efficacy
💡 Explanation
Elevated seismic liquefaction vulnerability is expected because bioturbation from increased earthworm activity alters loess structure and decreases density. Therefore, seismic waves cause previously structured soil to act like a liquid, creating failure planes rather than stable solid behavior.
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