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← GeographyWhich risk escalates globally during El Niño events?
A)Increased frequency coral bleaching events✓
B)Intensified coastal upwelling productivity
C)Decreased equatorial sea surface temperatures
D)Reduced Amazon rainforest fire hazard
💡 Explanation
El Niño diminishes trade winds preventing upwelling, which reduces nutrient flow, therefore coral bleaching increases because warmer waters stress corals, rather than increased ocean productivity which requires nutrient-rich upwelling.
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