The organic nature
of living things, plants and animals
carbo hydrate sq vegetable
protein, vegetable and animal
fats and vegetable oils and animal
organic acids from vegetable and animal
vitamins from plants and animals, and other compounds
have. from plant and animal remains,
petroleum
, crude oil,
natural gas,
oil shale
, coal,
peat
, lignite,
sub-bituminous coal
bituminous coal
, anthracite.
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