Choose the correct option:

Which of these following currents flows from the northern polar region upto Antarctica?

Deep ocean currents are those water currents which flow beyond the depth of 500m. They are driven by density and temperature gradients. This process is known as thermohaline circulation.

Warm ocean currents: They flow away from the equatorial region on the western side of ocean basins towards the poles. They are warmer than the surrounding water and so they are called warm currents.

Surface ocean currents: The water at the ocean surface is moved primarily by winds that blow in certain patterns because of the Earth’s spin and the Coriolis Effect. Winds are able to move the top 400 meters of the ocean creating surface ocean currents.

Cold ocean currents: The ocean currents that flow from the polar areas towards the Equator are cooler compared to the surrounding water, so they are called cold currents. They are usually found on the west coast of the continents in the low and middle latitudes in both the hemispheres and on the east coast in the middle latitudes.