Fossil energy sources, including oil, coal and natural gas, are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock.
(Fossil energy sources, including oil, coal and natural gas; are; non-renewable resources that formed) (non-renewable resources; formed; T:when prehistoric plants and animals died and were gradually buried by layers of rock) (prehistoric plants and animals; died; )
Fossil energy sources, including oil, coal and natural gas non-renewable resources prehistoric plants and animals
are formed died
non-renewable resources that formed
T:when prehistoric plants and animals died and were gradually buried by layers of rock