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← GeographyWhich outcome results when North Pacific gyre weakens?
A)Increased coastal upwelling strengthens fisheries
B)West coast salinity levels moderately decrease✓
C)Eastern boundary currents shift eastwards
D)Sea surface temperatures homogenize significantly
💡 Explanation
Weakening causes less evaporation, decreasing surface salinity because reduced Coriolis effect prevents stable surface convergence through Ekman transport, therefore less saline subsurface waters upwell gradually influencing the salinity of the water boundary rather than affecting upwelling.
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