Large algal blooms occur when oceanic environments experience which forcing mechanism?

💡 Explanation

Upwelling brings nutrient-rich deep water to the surface, fueling algal growth in illuminated areas because deeper waters have more accumulated decomposed organic matter; therefore, it increases surface productivity rather than relying on volcanic nutrients or thermal convection alone.

• Which mechanism causes higher methane flux from fjord sediments following glacial retreat?
• Which outcome results when a delta experiences overloaded sediment deposition?
• Which mechanism explains how subduction zones contribute to long-term carbon sequestration?
• Which mechanism causes oceanic stratification when freshwater runoff increases from glacial streams?
• Which outcome occurs when a substantial landslide obstructs stream flow into a glacial lake?
• Which climatic effect results when volcanic aerosols drastically increase Earth's albedo?