Changes

[[Scientist]]s believe that fossil fuels are the remains of huge amounts of plant material that was laid down millions of years ago, and altered in form under high temperatures and pressures.  Others theorize that it is synthesized naturally by underground processes, slowly rising towards the surface for our use.

[[Scientist]]s believe that fossil fuels are the remains of huge amounts of plant material that was laid down millions of years ago, and altered in form under high temperatures and pressures.  Others theorize that it is synthesized naturally by underground processes, slowly rising towards the surface for our use.