How does heat leave the earth?

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How does it leave the Earth if it can only be transferred through matter and there's space outside our atmosphere?
 

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39ster said:
How does it leave the Earth if it can only be transferred through matter and there's space outside our atmosphere?
There are three processes which transfer thermal energy, namely convection, conduction and radiation, the latter of which does not require a medium.
 
39ster said:
How does it leave the Earth if it can only be transferred through matter and there's space outside our atmosphere?
Hi 39ster,
Basically, heat transfer takes place in 3 ways:
>Conduction (Particles of the medium do not move, but matter is required for transfer of heat
>Convection (Particles of the medium themselver transport the heat)
>Radiation (Heat transfer takes place through electromagnetic waves which do not really require a medium to propagate)
Heat is lost by the Earth through Radiation.
 

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