. What is the first step in the movement of the Ocean Conveyor Belt, starting with the northern Atlantic Ocean?

Cooling, high salinity water that travels to the northern Atlantic Ocean from the south, sinks to the bottom of the ocean. To make room, it pushes the existing water down toward Antarctica.

Warming, high salinity water that travels to the southern Atlantic Ocean from the north, sinks to the bottom of the ocean. To make room, it pushes the existing water further north.

Cooling, low salinity water that travels to the northern Atlantic Ocean from the north, rises to the top of the ocean. To make room, it pushes the existing water further north.

Warming, low salinity water that travels to the northern Atlantic Ocean from the south, rises to the top of the ocean. To make room, it pushes the existing water further north.