uneven heating of the earth by the sun
convection
The heat in the Earth's interior comes from two main sources: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust and the primordial heat left over from the formation of the Earth.
Convection currents occur in the asthenosphere.
The theory of plate tectonics describes how plates move. The main driving force is convection currents in the mantle.
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convection
convection
Convection Currents
Convection currents
Convection currents
Convection Currents
Convection Currents
Convection Currents
Convection Currents
The three main factors that are responsible for setting convection currents in motion are the cooling and heating of fluid, any changes to their density and the force of gravity. These factors combine to set the currents in motion.
it is formed from convection currents.
the kitchen is a main place to find convection you can find it in the oven in the toaster and in the microwave