| Answer | Crossword Clue |
|---|---|
| METHANE | Dangerous buildup in a mine |
| GASSES | Dangerous buildup in a mine |
| DAMP | Dangerous mine gas |
| FIREDAMP | Dangerous mine gas. |
| METHANE | Dangerous mine gas. |
| Answer | Crossword Clue |
|---|---|
| METHANE | Dangerous buildup in a mine |
| GASSES | Dangerous buildup in a mine |
| DAMP | Dangerous mine gas |
| FIREDAMP | Dangerous mine gas. |
| METHANE | Dangerous mine gas. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.