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← GeographyWhich outcome is accelerated along ocean surface currents when increased atmospheric temperatures weaken the density gradient near glacier streams?
A)Enhanced thermohaline stratification
B)Downwelling zone expansion
C)Reduced vertical mixing✓
D)Greater upwelling intensity
💡 Explanation
Reduced vertical mixing occurs because warmer surface waters make it harder for denser, colder water to rise; the thermal stratification mechanism increases stability, therefore inhibiting the colder, glacier stream water from mixing upwards, rather than promoting mixing patterns.
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