Question

Why coal and petroleum are called fossil fuels?

Answer 1

it is because they are actually fossils.they are made of dead and decay matter burried under the earth for many years.the dead and decaying matter under great amount of pressure and temperatures turn into fossils.and these both are used as fuels so it is called fossil fuels.

Answer 2

Coal and petroleum are called fossil fuels because they have been formed from the fossilized remains of prehistoric plants and animals. They are a non-renewable source of energy for which they take millions of years to form.