Krystal Cuttell, a 12 year old female from the Internet asks on January 9, 1998,Who was Karl Adolf Clark?
viewed 14849 times
Karl Adolf Clark was a Canadian chemist who invented a hot-water recovery process for extracting oil from tar sands.
Note: All submissions are moderated prior to posting.
If you found this answer useful, please consider making a small donation to science.ca.