| Answer | Crossword Clue |
|---|---|
| ENZYME | Substance essential to life |
| VITAL | Essential to life |
| OIL | "Essential" substance |
| OIL | Essential or crude substance |
| NITROGEN | Essential of life. |
| DNA | Life-essential acid |
| Answer | Crossword Clue |
|---|---|
| ENZYME | Substance essential to life |
| VITAL | Essential to life |
| OIL | "Essential" substance |
| OIL | Essential or crude substance |
| NITROGEN | Essential of life. |
| DNA | Life-essential acid |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.