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[–] 50 points 1 year ago (2 children)

Didn't those trees become coal, not oil?

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  • [–] 7 points 1 year ago* (2 children)

    I think near water they became oil and far from water they became coal

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  • [–] 56 points 1 year ago (1 child)

    No, most coal comes from plants in swamps, because the water helped preserve the organic matter.

    Plants in swamps die -> organic matter on the bottom of the swamp -> peat -> brown coal -> black coal.

    Oil apparently comes mostly from plankton.

    On the different origins: https://www.carboeurope.org/how-are-fossil-fuels-formed-the-science-behind-oil-coal-and-natural-gas/

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