Which effect results when an El Niño event suppresses upwelling along the Peruvian coast?

💡 Explanation

When El Niño suppresses coastal upwelling, the nutrient supply diminishes because the thermocline deepens, reducing the flow of deep, nutrient-rich water to the surface promoting phytoplankton growth and oxygen production. Therefore, oxygen depletion and mortality result, rather than increased productivity, fog formation, or strengthened trade winds which require different oceanic conditions.

• Which weathering process primarily facilitates the formation of a cirque in alpine environments?
• Which mechanism primarily causes lobate terraces to form in high-latitude, gently sloping terrains during solifluction?
• Which outcome on land results from aeolian deposition?
• Which mechanism causes increased coastal subsidence during an earthquake along a subduction zone lacking sediment?
• Which hydrologic outcome results when atmospheric streams encounter orographic barriers?
• Which process limits nutrient availability despite large oceanic gyre circulation?