Which risk increases when anticyclonic ocean gyre circulation weakens?

💡 Explanation

Reduced gyre circulation decreases vertical mixing (upwelling) within the ocean, therefore nutrient redistribution becomes imbalanced, because upwelling helps redistribute nutrients; rather than increased upwelling intensity that is driven by the circulation.

• Which consequence results when significant tephra deposition overtops drainage divides?
• Which consequence results when bedrock compression reduces post-glacial rebound near fjords?
• Which phenomenon's intensity influences the latitudinal extent of the Hadley cell circulation pattern?
• Which risk increases when deforestation significantly reduces levees' vegetation cover?
• Which outcome occurs when magma viscosity increases inside a volcanic dome?
• Which of these results downstream after increased sinkhole formation?