GEOLOGY

Detailed explanation-1: -Water that rises to the surface as a result of upwelling is typically colder and is rich in nutrients. These nutrients “fertilize” surface waters, meaning that these surface waters often have high biological productivity. Therefore, good fishing grounds typically are found where upwelling is common.

Detailed explanation-2: -The upward movement of this deep, colder water is called upwelling. The deeper water that rises to the surface during upwelling is rich in nutrients. These nutrients “fertilize” surface waters, encouraging the growth of plant life, including phytoplankton.

Detailed explanation-3: -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.

Detailed explanation-4: -Upwelling occurs where surface currents are diverging, or moving away from each other. As the surface waters diverge, deeper water must be brought to the surface to replace it, creating upwelling zones. The upwelled water is cold and rich in nutrients, leading to high productivity.

Detailed explanation-5: -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.