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All except geothermal which is due to the previous star that exploded and made the elements that make up the radioactive elements which coalesced with others to make the Earth and which decay providing heat.

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Can there be energy without the sun?

Yes. There are energy sources within planets due to residual heat of formation and radioactive decay, but the sun is far, far and away the greatest energy source in this neck of the woods. Any and all other sources of energy are miniscule by comparison to the sun.


What energy source don't come from the sun?

Tidal energy, geothermal energy, and nuclear energy are examples of energy sources that do not directly come from the sun. Tidal energy is generated by the gravitational forces of the moon and sun, geothermal energy comes from heat within the Earth's crust, and nuclear energy is produced by splitting atoms in a controlled reaction.


Does all energy start with the sun?

No, not all energy originates from the sun. While the sun is a primary source of energy for our planet through processes like photosynthesis, there are other sources of energy such as geothermal, nuclear, and fossil fuels.


Are there any other energy sources other than the sun?

Yes, there are many other sources of energy besides the sun. Some examples include wind, hydroelectric, geothermal, biomass, nuclear, and fossil fuels like coal, oil, and natural gas. These sources provide energy for various applications such as electricity generation, heating, and transportation.


What percent of ultraviolet light energy comes from the sun?

About 95% of ultraviolet (UV) light energy that reaches the Earth's surface comes from the sun. The remaining 5% is produced by artificial sources, such as tanning beds and certain types of lamps. The sun emits three types of UV radiation: UVA, UVB, and UVC, with most of the UVC being absorbed by the Earth's atmosphere.