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← GeographyWhich outcome leads to increased fjord oxygen depletion after accelerated glacial melt?
A)Enhanced density stratification✓
B)Upwelling current intensification
C)Decreased sediment accumulation
D)Reduced freshwater runoff volume
💡 Explanation
Increased glacial meltwater input causes enhanced density stratification because of freshwater's lower density; this inhibits vertical mixing via convection; therefore, oxygen replenishment decreases in deeper fjord layers, rather than surface layers, driving depletion overtime.
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