Explain three advantages of using fossil fuels

according to sciencethreads.com

it states the following pros and advantages of fossil fuels..

1)Fossil fuels have a very high calorific value.

2)the energy produced by fossil fuels is greater than that produced by an equivalent amount of other energy resource.

3)Systems are set up to process and utilize oil and gas

4)Widely available around the globe

5)low cost per unit energy

6)Refineries, transportation, and plastics all rely heavily on oil and gas

7)High energy output

8)Employs millions of people globally

9)The primary source of all plastics

hope this helps :)

where is the scientific experiment?