Question

which shows do we get heat from​

Answer 1

I think you were writing source.

Geothermal energy comes from within the Earth. The heat is produced within Earth's core, which is made of solid iron surrounded by molten lava. The core is hotter than the surface of the sun. The energy is produced by the radioactive decay of particles of rocks, creating the magma.

The sun is by far the most important heat energy source. This energy can be stored sunshine from millions of years ago in the form of fossil fuels, or of current supply such as biomass and solar thermal. Today, the heat energy used is more than 80% fossil (coal, gas and oil).