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← GeographyWhich outcome occurs when a deep soil layer experiences decreased activity of worms?
A)Reduced soil aggregate formation✓
B)Increased capillary water retention
C)Enhanced phosphorus mineralization
D)Greater cation exchange capacity
💡 Explanation
Reduced worm activity lowers bioturbation, resulting in less soil mixing and weaker soil structures, because the worms mix organic matter and minerals promoting aggregation; therefore, aggregate formation decreases, rather than increased nutrient cycling, which also involves weathering.
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