The Sun
The four main sources of heat are the sun, geothermal energy from the Earth's core, friction from mechanical processes, and chemical reactions such as combustion.
The two main sources of energy in Earth's system are solar energy, which comes from the Sun, and geothermal energy, which comes from the Earth's internal heat.
The two main sources of heat in the troposphere are solar radiation, which warms the Earth's surface, and the release of latent heat energy from water vapor condensing into clouds and precipitation.
The three main energy sources of the earth are solar energy, geothermal energy, and wind energy. Solar energy comes from the sun, geothermal energy is generated from the Earth's internal heat, and wind energy is derived from the movement of the atmosphere.
Gas and oil, Nuclear, and Hydro These are the main energy sources.
The sun
Main sources of internal heat are Magmatism and Radioactivity.
The two main energy sources for Earth are solar energy, which comes from the sun and powers processes like photosynthesis and weather systems, and geothermal energy, which comes from the Earth's heat beneath the surface and can be harnessed for power generation and heating.
The primary sources of heat for protoplanets during their formation were gravitational collapse, radioactive decay of elements within the planet, and impacts from other celestial bodies. These heat sources contributed to melting the protoplanet's interior and driving geological processes like differentiation and magma ocean formation.
Non renewable sources of energy are used for multiple purposes in everyday life. Oil and natural gas are the main non renewable sources of energy used to heat homes and businesses.
Three main things come from a burning candle: light, heat, Thermal energy x
sun,stars,heat obtained by burning fuels,friction,electricity,heat from the decay of radioactive material in the earth's interior.....:)