GEOLOGY

EARTH SCIENCE

OCEANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which process allows cold ocean water, rich in nutrients, to rise to the surface?
A
Photosynthesis
B
desalination
C
undertow
D
. upwelling
Explanation: 

Detailed explanation-1: -Upwelling is the natural process which brings cold, nutrient-rich water to the surface. A huge upwelling regularly occurs off the coast of Peru, which enjoys a large fishing industry as a result. Upwelling is a process in which currents bring deep, cold water to the surface of the ocean.

Detailed explanation-2: -Upwelling is an oceanic process in which cold water from the deep rises toward the surface of the ocean. It is caused by strong winds and the rotation of the Earth which moves warmer surface waters offshore allowing the cold, nutrient rich water to rush up.

Detailed explanation-3: -Because of the Coriolis Effect, most of the water within about 150 to 300 feet of the surface (depending on the speed of the wind) is actually moving away from shore. This allows deep, cold water to flow toward shore and eventually rise up toward the surface.

Detailed explanation-4: -Brings the nutrient-rich ocean waters to the surface Not only does ocean upwelling bring the cold and deep ocean waters to the surface of the coast, but it also brings the water to the coastlines that are rich in nutrients. This happens due to the blowing winds and the rotation of the Earth on its axis.

There is 1 question to complete.