Question

what are fossil fuels​

Answer 1

$\huge \star { \underline{ \mathfrak{Answer}}}$

Fossil fuels are the remains of dead plants or vegetation, that are used for commercial purposes.

For example: Coal

Answer 2

Answer:

coal , petroleum etc are fossil fuels

Explanation:

they are made after millions of years naturally like coal is made up of dead trees due to heat . And petroleum is made up of dead remains of sea animals