| Answer | Crossword Clue |
|---|---|
| RESOURCE | Coal or natural gas, e.g. |
| FOSSILFUEL | Coal or natural gas |
| FUEL | Natural gas, e.g. |
| FOSSILFUEL | Coal or oil, e.g. |
| SCIENCE | It can be social or natural, e.g. |
| FUEL | Oil or gas, e.g. |
| UTIL | Gas or elec., e.g. |
| UTIL | Elec. or gas co., e.g. |
| PEDAL | Gas, brake or clutch, e.g. |
| UTIL | Electric or gas co., e.g. |
