EARTH SCIENCE
OCEANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Wind blows offshore, creating an increase in nutrient-rich water.
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Ocean upwelling decreases, resulting is lower levels of nutrient-rich water.
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Greater ocean circulation causes nutrients to be more equally distributed.
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Stronger storms prevent fishing, resulting in fish depleting the nutrient supply.
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Detailed explanation-1: -When weather conditions are disrupted by El Nino, how does this affect ocean nutrients? Ocean upwelling decreases, resulting in lower levels of nutrient-rich water.
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: -Winds blowing across the ocean surface often push water away from an area. When this occurs, water rises up from beneath the surface to replace the diverging surface water. This process is known as upwelling.
Detailed explanation-4: -Upwelling is a process in which currents bring deep, cold water to the surface of the ocean. Upwelling is a result of winds and the rotation of the Earth. The Earth rotates on its axis from west to east. Because of this rotation, winds tend to veer right in the northern hemisphere and left in the southern hemisphere.