| Answer | Crossword Clue |
|---|---|
| ALLFUELSDAY | When coal, gas and oil are delivered? |
| FUELS | Coal, gas and oil |
| hydrocarbon | a compound of hydrogen and carbon with nothing else, occurring notably in oil, natural gas and coal |
| hydrocarbons | HYDROCARBON, a compound of hydrogen and carbon with nothing else, occurring notably in oil, natural gas and coal |
| ethylene | A flammable hydrocarbon gas of the alkene series, occurring in natural gas, coal gas, and crude oil and given off by ripening fruit. It is used in chemical synthesis, esp. in the manufacture of polyethylene |
| FUELS | Gas, coal, oil, etc. |
