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Which ocean current change results when subtropical gyre intensification weakens atmospheric Hadley cell return flow?

A)Increased coastal upwelling reduction
B)Equatorial countercurrent weakening occurs
C)Enhanced thermohaline circulation decline
D)Subpolar gyre intensification surge

💡 Explanation

Weakened Hadley cell return flow reduces trade wind strength, decreasing the convergence which drives the western intensification and the Equatorial Countercurrent, because pressure gradients lessen; therefore the countercurrent weakens, rather than upwelling changes which are linked to different wind patterns.

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