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← GeographyWhich phenomenon delays the complete overturn of thermohaline circulation?
A)Eddy kinetic energy dissipation
B)Increased polar ice formation
C)Declining North Atlantic salinity✓
D)Enhanced deep-water oxygen diffusion
💡 Explanation
Reduced salinity from melting ice caps decreases water density; weakening the density gradient that drives thermohaline flow via convective overturning. Ocean stratification is the mechanism impeding sinking, because less dense water layers stay on top, rather than mixing completely.
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