1) Currents move the ocean water and circulate the water. Ocean flow is the huge scale movement of waters in the ocean basins. Winds energy surface circulate, and the cooling and sinking of waters within the polar regions power deep circulate. WATER VS. IN THE OCEAN 2) The water at the bottom of the pot heats up first. This causes it to make bigger. Since the warmed water has a decreased density than the water around it, it rises up through the cooler, dense water. Read more https://bit.ly/2BtUi5G