| Answer | Crossword Clue |
|---|---|
| ECO | Sphere or system starter |
| ECO | Prefix for system or sphere |
| ECO | Prefix with system or sphere |
| ECO | Prefix with sphere or system |
| ECO | System or type starter |
| ATMO | Sphere starter |
| ECO | Sphere starter |
| STRATO | Sphere starter |
| TROPO | Sphere starter |
| IONO | Sphere starter |
| ATMO | Sphere starter? |
| HEMI | Sphere starter |
| STRATO | Starter for sphere |
