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an unequal distribution of heat
an unequal distribution of heat By: (FINALLY NOT A TROLL ANWSER)
convection cells in the mantle
Thermal convection in the Earth's mantle is caused by the fact that the deeper parts are hotter and therefore less dense than the surface parts. This in turn is caused because the surface of the Earth loses heat to space by radiation, and is therefore cooled, while the central parts (a) retain some heat from the gravitational and kinetic energy released by the accretion of the Earth from planetismals and (more significantly), (b) are continually heated bylatent heat of fusion released when molten iron from the outer core solidifies onto the surface of the inner core,gravitational potential converted to kinetic energy (and then to heat through friction) as the Earth continues to differentiate (dense minerals tending to sink), andradioactive decay of radioactive isotopes in the material of the Earth, notably thorium-232 and potassium-40.This thermal convection also drives hot-spot vulcanism.
The liquid or gas which transfers the heat can circulate round and round between the hot and cold regions. The flow of liquid or gas is called a convection current. Convection currents are caused by changes in density.
an unequal distribution of heat
an unequal distribution of heat By: (FINALLY NOT A TROLL ANWSER)
convection currents
mantle convection
convection cells in the mantle
convection is the transfer of heat in a liquid or gas by thermal energy from one part of a fluid to another. ;0)
Mantle convection is the slow creeping motion of Earth's rocky mantle caused by convection currents carrying heat from the interior of the earth to the surface. It is the driving force that causes tectonic plates to move around the Earth's surface.
The transfer of heat (therms) through fluid (including air) motion.
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currents caused by the motion of heated molecules
Yes both on the macroscopic scale (convection) and the microscopic scale (thermal motion). Everthing above zero Kelvin (absolute zero) has thermal motion.
Convection, where the transfer of thermal energy it occurs by the actual movement of the heated air in a circular motion.