petrol - ertolp, diesel - eeidls, butane - aunbte, propane - onaprep, butene - eenubt, plastic - itaslcp, oil - iol, fossil fuel - essoflilf u, carbon - bcnroa, hydrogen - rogdhyne, alcohol - lahlooc, ethane - tenahe, methane - mtnheea, ethene - eeenht, paraffin - iafaprnf, ester - seter,

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