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 land shift results when sediment flux overwhelms fluvial avulsion?
• Which localized effect is caused by adiabatic expansion within a rain shadow region of a mountain range?
• Which risk increases when warming temperatures degrade permafrost beneath Arctic infrastructure supports?
• Which mechanism alters regional rainfall patterns associated with changes deep-ocean thermohaline circulation?
• Which mechanism accelerates floodplain widening in a meandering river exhibiting alluvial terraces?
• Which process triggers the formation of oxbow lakes in alluvial plains?