Because the water is warmer at the equator than at the pole. The warmer ocean water is the faster the currents move and the colder the water is the slow the currents move.
East dummy
The equator.From there they flow to the North or South Poles in order to cool them.
The Earth's magnetic field is principally the result of electric currents generated in the mantle by its heat causing movement of this mass. A minor perturbation of this may be caused by currents derived from the Solar Wind - the flow of charged particles from the Sun. And of course the residual magnetization of local rocks will also have some effect.
Magma in the mantle moves in a current called a convection current. A convection current is a circular flow of a substance in which a hot substance rises, cools, sinks, gets hot again, and repeats. In this way, magma in the mantle flows in currents of more hot or more cool magma.
Mount St. Helens has produced lava flows in the past. However, the famous eruption in 1980 produced something much more dangerous: pyroclastic flows. These are avalanche-like currents of hot ash, rock, and gas that race out of a volcano. The initial pyroclastic flow from the lateral blast may have briefly been supersonic.
At the poles.
At the poles.
At the poles.
Ocean currents flow near the equator from the east to west. Ocean currents flow near the poles from west to east.
Ocean currents flow near the equator from the east to west. Ocean currents flow near the poles from west to east.
Cold currents generally flow towards the equator. (a.k.a. south).
At the poles because the water is colder and less dense............
Warm ocean currents cool as they flow along a coastline away from the equator because sand and minerals are transported by ocean currents away from the equator.
Ocean and wind currents above the equator flow in a clockwise pattern, while those south of the equator flow in a counterclockwise pattern. But all the winds and currents meet at the equator and flow east to west forming the trade winds and equatorial currents.
The Equator
westward