FOSSIL FUELS Substances derived from prehistoric plants or animals such as coal, oil, and natural gas which are used as energy sources.
(FOSSIL FUELS Substances; derived; from prehistoric plants or animals such as coal, oil, and natural gas) (prehistoric plants or animals such as coal, oil, and natural gas; are used; as energy sources)
FOSSIL FUELS Substances prehistoric plants or animals such as coal, oil, and natural gas
derived are used
from prehistoric plants or animals such as coal, oil, and natural gas
as energy sources