Which phenomenon limits phytoplankton growth during deep coastal upwelling events?

💡 Explanation

When deep water upwells, it brings nutrients to the surface but rising from deeper implies diminished radiance because light absorption follows exponential decay, limiting photosynthetic activity in phytoplankton. Therefore insufficient light restricts growth, rather than nutrient depletion, wind mixing, or predation, which are less direct constraints.

• Which risk increases when extensive vegetation removal occurs on river levees?
• Which risk significantly elevates following prolonged drought cycles in karst landscapes?
• Which scenario increases the likelihood of lahar formation following pyroclastic flow events?
• Which phenomenon increases when topsoil experiences reduced throughflow?
• Which mechanism causes deflection of prevailing winds, influencing ocean currents and storm tracks, in mid-latitude regions?
• Which outcome is observed following increased latent heat release within a Hadley cell?