| Answer | Crossword Clue |
|---|---|
| AEROPLANE | Traveler in the stratosphere. |
| HIGHUP | In the stratosphere |
| OUTOFSIGHT | In the stratosphere |
| HIGH | In the stratosphere. |
| ALOFT | In the stratosphere |
| OZONE | Gas in the stratosphere |
| THINAIR | It's in the stratosphere |
| OZONE | Layer in the stratosphere |
| OZONE | Dwindling gas in the stratosphere |
| SST | Former plane in the stratosphere |
| stratospheres | STRATOSPHERE, a region of the atmosphere beginning about 41/2 to 10 miles up, in which temperature does not fall as altitude increases |
| mesosphere | The region of the earth's atmosphere above the stratosphere and below the thermosphere, between about 30 and 50 miles (50 and 80 km) in altitude |
