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← GeographyWhich outcome occurs when freshwater inflow reduces surface density within an ocean gyre?
A)Weaker thermohaline circulation in deep ocean✓
B)Increased oceanic nutrient mixing efficiency
C)Stronger coastal upwelling water formation
D)Intensified salinity gradient on the seabed
💡 Explanation
Reduced surface density slows down the global thermohaline circulation because decreased density leads to reduced sinking of surface water. Therefore, less dense water inhibits convection, rather than stimulating it, because density differences drive the thermohaline 'conveyor belt'.
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