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← GeographyWhich outcome occurs when wind-driven surface currents converge within an ocean gyre?
A)Upwelling of nutrient-rich water
B)Expansion of thermocline depth
C)Development of a surface water lens✓
D)Formation of coastal downwelling zones
💡 Explanation
When surface currents converge within a gyre, Ekman transport causes water to pile up, forming a region of elevated sea surface height and increased pressure, suppressing upwelling. Therefore a surface water lens develops, rather than upwelling, thermocline expansion, or downwelling which involve divergence or coastal processes.
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