Answer | Crossword Clue |
---|---|
kerogen | the bituminous matter in oil shale, from which shale oil is obtained by heating and distillation |
Answer | Crossword Clue |
---|---|
kerogen | the bituminous matter in oil shale, from which shale oil is obtained by heating and distillation |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.