Question

what is the upward movement of cold water from the ocean depths called?
la niña
el niño
global warming
upwelling

Explanation:

La Niña is a climate pattern related to cooler - than - average sea surface temperatures in the central and eastern tropical Pacific. El Niño is a climate pattern with warmer - than - average sea surface temperatures in the central and eastern tropical Pacific. Global warming is the long - term rise in Earth's average surface temperature. Upwelling is the upward movement of cold water from the ocean depths.

Answer:

upwelling