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The ocean receives most of its heat along the equator, where incoming solar radiation is about double that received at the poles. Hence, sea surfaces are much warmer along the equator than at the poles.
Along warm water currents from the equator to the poles.
if a current originates near the poles and flows towards the equator, it will be colder than all the water it meets. Hence it will be a cold current. ...conversely, if it originates near the equator and flows towards the pole, it will be warmer than the water it meets and be a warm current. In a Short Summary Cold Ocean Currents Originate From The Poles And Warm Ocean Currents Originate From The Equator
the sun's rays strike the water at a angle at the poles APEX
Yes
because it gets cold on the way.
Ocean water generally gets warmer toward the equator and cooler toward the poles. However, the warmest water is not usually observed directly on the equator itself.
the coriolis effect
Earth's tilt
Ocean currents flow near the equator from the east to west. Ocean currents flow near the poles from west to east.
The equator has no poles.
Yes, insolation, which is the amount of energy a surface receives from the sun in kilowatts, at is less at the poles than the equator. This causes convection and in turn causes wind and ocean currents, but other influences, such as Earth's rotation and topography are also responsible.