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← GeographyAn oxbow lake's dissolved oxygen drops. Which mechanism declines?
A)Eutrophication exceeding oxygen replenishment✓
B)Capillary action in surrounding clay
C)Insolation absorption on deeper sediment
D)Saltwater stratification near estuarine areas
💡 Explanation
Accelerated eutrophication causes depleted oxygen because decomposers consume organic material faster than atmospheric oxygen can dissolve in the stagnant water; therefore this kills aquatic life rather than the other proposed effects.
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