How are ocean currents formed ?

They are caused either by winds or by differences in the density of the waters of the ocean at various places.
Winds constantly blowing in the same direction set the surface water drifting in the same direction. The
surface water in tropical regions is heated to a greater extent than the rest of the ocean and thus becomes
lighter. Consequently it is forced to the surface by the , greater pressure of surrounding cold.water and flows
outward as warm surface currents.

Leave a Comment