Final answer:
Ocean upwelling is the rising of deep ocean waters that brings up nutrients from the ocean depths. It is associated with downwelling in colder waters and upwelling in warmer waters.
Step-by-step explanation:
Ocean upwelling is the rising of deep ocean waters that occurs when prevailing winds blow along surface waters near a coastline. It brings up nutrients from the ocean depths and is associated with downwelling in colder waters and upwelling in warmer waters. Downwelling is more closely associated with colder waters and upwelling is more closely associated with warmer waters. This process is important for recycling nutrients and energy in the ocean.