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← GeographyWhich environmental outcome occurs when islands interrupt ocean currents?
A)Upwelling of nutrient-rich deep waters✓
B)Increased rates of glacial calving
C)Enhanced thermohaline circulation speed
D)Decreases in atmospheric carbon sequestration
💡 Explanation
Upwelling occurs due to Ekman transport; surface water deflects offshore, causing deeper, nutrient-rich waters to rise because islands block prevailing currents. Therefore, upwelling increases near islands rather than other climate-specific effects.
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