Question

what is a fuel?

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Answer 1

Answer:

A fuel is a substance that is changed in some way to produce heat, electricity, or other forms of energy. This is usually by being burnt, although there are exceptions, such as nuclear fuel. Fuel can be divided into two main types: fossil fuels and other fuels.

Answer 2

Answer:

An individual and domestic such as coal, petroleum, wood these substances are called fuels