Nutrients are reintroduced into the upper reaches of the oceans from deeper areas by the process of:
A) wind and ocean currents.
B) respiration of marine animals.
C) excretion of wastes by animals.
D) sinking of dead organisms.
E) their attachment to floating plankton.

Question

Quizplus · Accepted Answer

Wind and ocean currents play a significant role in upwelling, a process that brings nutrient-rich water from deep in the ocean to the surface, reintroducing essential nutrients into the upper reaches of the ocean ecosystem.

Nutrients Are Reintroduced into the Upper Reaches of the Oceans