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thx

2007-03-17 09:32:53 · 5 answers · asked by Anonymous in Environment

5 answers

Oil and gas tend to come from marine single celled animal sources, coal from plants (Carboniferous tree ferns).

2007-03-17 09:36:42 · answer #1 · answered by Anonymous · 0 0

Swamp plants from the Carboniferous Period made coal. Microscopic ocean organisms made oil and gas.

2007-03-17 09:40:05 · answer #2 · answered by The Man In The Box 6 · 0 0

any carbon life form (everything) can be used to make fossil fuels fossil fuels are hydrocarbons

2007-03-17 09:36:50 · answer #3 · answered by Justin H 4 · 1 0

ferns

2007-03-17 09:35:44 · answer #4 · answered by Anonymous · 0 0

Dead ones.

2007-03-17 10:24:32 · answer #5 · answered by Scott S 4 · 1 0

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