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← GeographyWhich climate shift occurs where subtropical gyre downwelling weakens?
A)Increased coastal desert aridity✓
B)Strengthened subtropical high pressure
C)Decreased coastal nutrient supply
D)Intensified offshore Ekman transport
💡 Explanation
Reduced gyre downwelling causes decreased convergence; therefore, local sinking of cool, dry air diminishes, weakening the stabilizing influence on coastal climates and potentially expanding desert regions, because vertical air motion changes rather than purely lateral flow.
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