Tens of millions of years.   Coal is a fossil fuel created from the remains of plants that lived  and died about 100 to 400 million years ago when parts of the earth  we â¦ re covered with huge swampy forests. Coal is classified as a  nonrenewable energy source because it takes millions of years to  form.
New Scooby episodes, in the original Scooby-Doo, Where Are You! format, were produced for each of these three seasons. Four of these episodes featured Scooby's dim-witted country cousin, Scooby-Dum, as a semi-regular character.
Voices. 1  Neil Fanning as the voice of Scooby-Doo. 2  Scott Innes and J. P. Manoux as the voice of Scrappy-Doo. 3  Jess Harnell and Frank Welker as the voice of creatures.