Across
- 2. Too much gas in atmosphere, too hot
- 4. Burning lessens oxygen in atmosphere(Smokey would not approve)
- 8. Gases that build up in the atmosphere
- 9. The wonderful teacher who taught me all this
- 11. Gas that comes from livestock
- 12. Where Aurora Borealis occurs
- 13. Used by plants to create oxygen
- 17. Where weather happens
- 19. 21% of atmospheric gases
- 20. 0.08% of trace gases
Down
- 1. Characteristic of thermosphere
- 3. Coldest layer of atmosphere
- 5. So hot that there is no liquid water
- 6. The main source/contributors to the Greenhouse Effect
- 7. Practice of burning this contributes to more CO2 in atmosphere
- 8. A large issue caused by the Greenhouse Effect
- 10. Second layer of atmosphere
- 14. 78% of atmospheric gases
- 15. 4.7% of trace gases
- 16. Burn up in Mesosphere
- 18. 1.3% of trace gases
- 21. Layer in the stratosphere that absorbs UV rays