Which mechanism causes localized increases in marine photosynthetic activity resulting from coastal upwelling?

💡 Explanation

When upwelling occurs, deep ocean water rises to the surface due to wind-driven currents and Ekman transport, causing increased nutrient availability for phytoplankton. Therefore, increased nutrient availability results, rather than enhanced light, elevated temperatures or reduced salinity which have reverse effect on it.

• Which outcome occurs when increased rainfall accelerates chemical weathering?
• Which effect does the Coriolis force have on geostrophic wind direction in the Northern Hemisphere?
• Which effect increases when vegetation is removed from a reinforced levee system along a major river?
• Which process causes cirque widening beyond normal weathering thresholds after glacier retreat?
• Which mechanism causes atmospheric stability when air sinks within polar cells?
• Which mechanism amplifies stream erosion when deforestation occurs on steep slopes within equatorial rainforests?