Which outcome is promoted by intensified subtropical gyre circulation?

💡 Explanation

Intensified gyre circulation causes stronger coastal upwelling, because increased surface water divergence pulls deep, nutrient-rich water towards the coasts. Therefore, upwelling zone expansion is promoted, rather than declining sequestration or effects on abyssal plains, because these depend on other mechanisms.

• Which effect limits phytoplankton blooms despite nutrient-rich upwelling in certain ocean regions?
• What outcome increases downwind when longshore drift slows?
• Which surface outcome results from felsic lava's high viscosity?
• Which risk increases when barrier islands retreat landward?
• Which consequence results when deep ocean productivity declines in a gyre?
• Which risk increases when a rhyolitic lava dome nears collapse?