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← GeographyWhich outcome sharply reduces coastal krill populations when westward trade winds in the Pacific stall?
A)Reduced upwelling nutrient supply✓
B)Increased gyre surface convergence
C)Enhanced thermohaline density gradient
D)Weakened Coriolis Effect strength
💡 Explanation
Reduced trade winds weaken upwelling, disrupting nutrient transport because wind-driven Ekman transport diminishes, halting the transport of nutrient-rich deep water, therefore limiting krill food, rather than increasing convergence. Coastal upwelling provides nutrient supply.
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