the inner core
Sun
the mantle plume There are two source of heat in the earth's interior. The main two sources are fire and breathing heat.
the external heat is the sun
The main source of heat is the Sun.
The Sun.
The sun
The main source of heat that makes water on the earth evaporate is the thermal energy from Sun.
The main source of energy that heats the Earth is the Sun. Solar radiation is absorbed by the Earth's surface and then re-radiated as heat. The Earth's atmosphere traps some of this heat, leading to the warming of the planet.
The source of heat in the mantle primarily comes from the decay of radioactive elements like uranium, thorium, and potassium. This process releases energy in the form of heat which contributes to the high temperatures within the Earth's mantle.
The heat source within the early Earth was primarily from the process of planetary accretion, where gravitational energy from colliding particles and the compression of material as the Earth formed generated heat. Radioactive decay of elements like uranium, thorium, and potassium also contributed to the heat within the Earth's interior.
A geothermal source is a natural heat energy derived from the Earth's internal heat. It can be harnessed for power generation, heating, and cooling purposes. Geothermal sources include hot springs, geysers, and underground reservoirs of hot water or steam.
earth's internal heat