Question

Nutrients are high in antartic waters because :_________ a.) they have a strong thermocline b.) they are isothermic c.) upwelling d.) hydrothermal vents

Answer 1

The high levels of nutrients in Antarctic waters are due to ocean upwelling, a process in which deep ocean waters rise to the surface, bringing nutrients from the bottom of the ocean.

Step-by-step explanation:

The high levels of nutrients in Antarctic waters are primarily due to ocean upwelling. Ocean upwelling is the process in which deep ocean waters rise to the surface, bringing with them nutrients from the bottom of the ocean. This occurs when prevailing winds blow along surface waters near a coastline, pushing the surface waters offshore and allowing the nutrient-rich deep waters to move up and replace them.