| Answer | Crossword Clue |
|---|---|
| petrogenies | PETROGENY, the study of the origin of rocks |
| Answer | Crossword Clue |
|---|---|
| petrogenies | PETROGENY, the study of the origin of rocks |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.