EVERYDAY SCIENCE

Detailed explanation-1: -Which best explains what happens to nutrients in the ocean as a result of upwelling? Upwelling carries nutrients to coral reefs.

Detailed explanation-2: -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-3: -Upwelling brings cold water from the deep ocean to the surface. This cold water is typically rich in nutrients such as nitrate and phosphate because of the dead and decaying matter that has sunk to the ocean floor. These nutrients are important for the primary producers of the oceanic food chain, the phytoplankton.

Detailed explanation-4: -Upwelling occurs when winds push surface water away from the shore and deeper water rises to fill the gap. During upwelling, wind-displaced surface waters are replaced by cold, nutrient-rich water that wells up from below.

Detailed explanation-5: -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.