| Answer | Crossword Clue |
|---|---|
| firedamp | a combustible mine gas that consists chiefly of methane |
| Answer | Crossword Clue |
|---|---|
| firedamp | a combustible mine gas that consists chiefly of methane |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.