Which outcome results downstream of the Pacific Equatorial Undercurrent during a strong El Niño event?

💡 Explanation

When a strong El Niño event occurs, the Pacific Equatorial Undercurrent weakens because trade winds collapse, reducing upwelling of nutrient-rich water along the South American coast. Therefore, decreased coastal upwelling results, rather than increased oxygen, California Current expansion, or stronger stratification, all caused by different oceanic conditions.

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