What causes the global convection current between the equator and the poles?

Question

anonymous · Answer

what are the choices?

anonymous · Answer

Earth's revolution around the sun i think

anonymous · Answer

no too sure, but if that is one of the choices then wait, because that could be wrong.

anonymous · Answer

medal?

anonymous · Answer

Global convection are caused by differences in pressure and heat in areas on earth. When the earth is spinning, convection currents are circulating in the mantle. When earth's rotation pulls the matter in the mantle, this causes the earth's rotation to respond where the mantle convection currents travel. Read more : http://www.ehow.com/list_6581412_causes-convection-currents-mantle_.html Convection currents will keep circulating as long as there is heat.