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← GeographyWhich outcome occurs when excessive bioturbation decreases aggregate stability?
A)Increased susceptibility to soil erosion✓
B)Enhanced plant nutrient availability
C)Reduced risk of soil compaction
D)Greater carbon sequestration potential
💡 Explanation
Increased bioturbation, exceeding natural levels, diminishes aggregate stability because physical reworking outpaces binding by fungal hyphae or organic matter, therefore increasing erosion susceptibility rather than improving soil structure, due to loss of cohesion.
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