xkcd

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submitted 6 months ago by [email protected] to c/xkcd

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An idling gas engine may be annoyingly loud, but that's the price you pay for having WAY less torque available at a standstill.

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[–] AEsheron 31 points 6 months ago* (last edited 6 months ago)

IIRC it is actually mostly from algea. A small amount from some fern-like plants. By the time trees existed, they were being broken down by bacteria.