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← GeographyWhich consequence results when increased freshwater influx slows thermohaline circulation?
A)Decreased primary productivity in Northern latitudes✓
B)Increased oxygen concentration at ocean depths
C)Enhanced tropical cyclone intensity globally
D)Weakening of the Antarctic Circumpolar Current
💡 Explanation
Reduced mixing from slower thermonaline circulation decreases nutrient supply to the surface, limiting phytoplankton blooms because of reduced upwelling; therefore, primary productivity declines, rather than productivity increasing in other regions or enhancing unrelated hurricane events.
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