| Answer | Crossword Clue |
|---|---|
| GASES | Krypton and oxygen, e.g. |
| GASES | Krypton and xenon, e.g. |
| GASES | Hydrogen and oxygen, e.g. |
| TENTS | Pup and oxygen, e.g. |
| TVNETWORKS | Oxygen and Ion, e.g. |
| INERTGAS | Krypton, e.g. |
| RAREGAS | Krypton, e.g. |
| GAS | Krypton, e.g. |
| PLANET | Krypton, e.g. |
| ELEMENT | Krypton e.g. |
| GAS | Krypton or radon, e.g. |
