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.
Don Messick originated the voice of Scooby-Doo, and was the voice of the character for over 25 years until his retirement from voice acting in 1996 (he subsequently passed away the following year).rank Welker's Scooby-Doo voice is pretty much identical to the voice he used for Brain on Inspector Gadget.. Hadley Kay and Neil Fanning are the worst, IMO...