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← GeographyWhich outcome occurs when a gyre circulation strengthens?
A)Increased coastal upwelling reduction
B)Decreased vertical nutrient flux
C)Intensified eastern boundary currents✓
D)Weakened western boundary intensification
💡 Explanation
Intensified eastern boundary currents result because the Sverdrup balance dictates that increased gyre circulation is balanced by boundary currents. Therefore, eastern currents intensify, rather than a reducing of upwelling which occurs with weakening gyres.
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