Across
- 1. OXYGEN
- 3. DESERTS
- 5. HARMFUL
- 7. CARBON DIOXIDE
- 9. TEMPERATURE
- 12. GLOBAL WARMING
- 14. BLANKET
- 15. SHIELD
- 16. GLACIER
- 21. TRAPS
- 23. EARS
- 24. AIR PRESSURE
Down
- 2. GREENHOUSE EFFECT
- 4. BREATHE
- 6. LAYER
- 7. CHANGING
- 8. BUILDING
- 10. OZONE
- 11. VENUS
- 13. METEOR
- 17. ATMOSPHERE
- 18. BOTTOM
- 19. WEATHER
- 20. INSIDE
- 22. MARS
- 23. ENERGY