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← GeographyWhich environmental change results when North Pacific gyre intensification weakens coastal upwelling?
A)Nutrient depletion in surface waters✓
B)Halting of Coriolis-driven water deflection
C)Increased seismic frequency
D)Increased density gradient formation
💡 Explanation
Weakened gyre intensification slows Ekman transport from the coast, reducing upwelling; because upwelling supplies nutrient-rich water, nutrient depletion occurs. Therefore, the answer is nutrient depletion, rather than other effects driven by upwelling failures.
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