Why are fossil fuels not renewable?

A. There is a abundant supply of fossil fuels.
B. It is a widley used source of energy.
C. It takes hundreds of millions of years to form them?
D. They are replaced within a short period of time.

4 answers

What does your text say?

What does renewable mean?
Can be used again?
You're not sure?
Look up renewable in a dictionary.

http://dictionary.reference.com/

Also, please post what your text says.
I did, thx I can figure it out myself I guess because I posted exactually what that question said!