Magma can be displaced by the movement of surrounding rocks (advection), rather than rising and falling as it is heated and cooled (convection).
The Earth mainly receives energy Radiated by the Sun.
This is known as convection.
Earth loses energy to outer space through radiation.
radiation"radiation"
The energy transfers underground by radiation.
It's Radiation
convection
convection
radiation, this is the only one that travels in a vacuum
Electro magnetic waves eg:-light,UV,heat
Gas is used to heat transfer the sun, and which can make a thing called solar energy.
There are three means of heat transfer, Convection, conduction, and radiation. All three occur to some degree in all heat transfer processes.