Which outcome sharply reduces coastal krill populations when westward trade winds in the Pacific stall?

💡 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.

• Which mechanism exacerbates flood risk when constructing buildings within an alluvial fan?
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