| Answer | Crossword Clue |
|---|---|
| SHALE | Synfuel source |
| synfuels | SYNFUEL, a fuel derived from fossil fuels |
| Answer | Crossword Clue |
|---|---|
| SHALE | Synfuel source |
| synfuels | SYNFUEL, a fuel derived from fossil fuels |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.