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Nouse · Answer 1 · 2021-07-19T07:27:11+0000

Fossil fuels are of great importance because they can be burned (oxidized to carbon dioxide and water), producing significant amounts of energy per unit mass. The use of coal as a fuel predates recorded history. Coal was used to run furnaces for the smelting of metal ore.

Darkryder · Answer 2 · 2021-07-22T09:12:36+0000

Answer:

They are significant because they power the entire world, but are also the cause of Global warming. Unfortunately we will run out of fossil fuels and start using Solar energy or wind energy etc.

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