Question

the movement of cold, nutrient-rich water to the ocean surface is called

○ turnover

○ upwelling

○ a tsunami

○ a cold front

Explanation:

• Turnover: Refers to the mixing of water in a lake (not ocean - related in this context).
• Upwelling: Is the process where cold, nutrient - rich water from the deep ocean rises to the surface.
• Tsunami: Is a large ocean wave usually caused by an underwater earthquake or landslide, not related to the movement of nutrient - rich water.
• Cold front: Is a meteorological phenomenon (related to air masses, not ocean water movement).

Answer:

upwelling