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← GeographyWhich outcome occurs when sediment anoxia limits burrowing organisms?
A)Decreased nutrient recycling rate✓
B)Increased methanogenesis activity
C)Enhanced sediment mixing event
D)Elevated detritus decomposition speed
💡 Explanation
Decreased bioturbation reduces nutrient flux because decreased oxygen from sediment anoxia limits organism burrowing, impairing the movement of elements across depths. Therefore, the nutrient recycling diminishes rather than the organic matter removal, which needs anoxic circumstances instead.
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