Question

What are fossil fuels?
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Answer 1

A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion.

Answer 2

Answer:

$\sf\underline\red{Answer}$

a natural fuel such as coal or oil, that was formed millions of years ago from dead animals or plants in the ground