What is upwelling and why is it important to the marine ecosystem?

Question

anonymous · Answer

Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually nutrient-depleted surface water.  upwelling zones can be identified by cool sea surface temperatures

deepika.comet · Answer

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praetorian.10 · Answer

an instance or amount of seawater, magma, or other liquid rising up.