The Sun.
the mantle plume There are two source of heat in the earth's interior. The main two sources are fire and breathing heat.
Oil
sun
The main source of heat is the Sun.
The main source of energy and heat is the sun.
sunlight and meteor impacts
Cooking uses heat energy as the main source. It is the main activity that uses heat as a source of energy.
The main source of light is the sun
there are many reasons for heat in earths crust. like the friction between rock masses during movements of earths crust. there may also be heat left over from the original heat of earths interior. but the main reason for heat in earths crust is radioactive elements. they give off energy that can be absorbed as heat. some radioactive elements include uranium, thorium, and a form of potassium.
What needs a heat source to begin evaporating. Normally the sun is the heat source that evaporates water on the earths surface.
the mantle plume There are two source of heat in the earth's interior. The main two sources are fire and breathing heat.
The Sun.