Courtesy P. C. Baumann, USGS Petroleum &nbsp Petroleum, like coal, is a complex mixture containing thousands of compounds derived from the decay of prehistoric plants and animals.
(Courtesy P. C. Baumann, USGS Petroleum &nbsp Petroleum, like coal; is; a complex mixture containing thousands of compounds) (a complex mixture; containing; thousands of compounds) (compounds; derived; from the decay of prehistoric plants and animals)
Courtesy P. C. Baumann, USGS Petroleum &nbsp Petroleum, like coal a complex mixture compounds
is containing derived
a complex mixture containing thousands of compounds
thousands of compounds
from the decay of prehistoric plants and animals