| Answer | Crossword Clue |
|---|---|
| ODOR | Sign of a natural gas leak |
| ODOR | Hint of a gas leak |
| BHOPAL | Indian city that was the site of a deadly gas leak in 1984 |
| ODOR | Tip-off to a gas leak |
| SNIFF | Check for a gas leak, perhaps |
| METHANE | A natural gas |
| PROPANE | A natural gas |
| MONROELOUISIANA | City surrounded by a great natural-gas field |
