| Answer | Crossword Clue |
|---|---|
| ODOR | It's added to natural gas |
| ODOR | Quality added to natural gas |
| THIOL | Compound added to natural gas to give it an odor |
| fertilizers | A chemical or natural substance added to soil or land to increase its fertility |
| fertilizer | A chemical or natural substance added to soil or land to increase its fertility |
| ETHENE | It's derived from natural gas |
| unwind | undo (a financial arrangement or position) through the necessary legal or financial steps unwound most of its natural gas hedges New York Times |
