Across
- 2. what type of air does the greenhouse effect trap?
- 4. earth's biggest layer
- 8. earth's top layer
- 10. produced during photosynthesis
- 11. the first atmosphere layer
- 12. 78% of the earth atmosphere
- 15. the last atmosphere layer
- 16. does the world not have global warming
- 17. earth's liquid layer
- 20. 21 percent of the earth's atmosphere
Down
- 1. where is most of our fresh water
- 3. made when people use fossil fuels
- 5. does the atmosphere release heat? (t/f)
- 6. earth's middle layer
- 7. can humans stop global warming? (y/n)
- 9. layer where weather balloons are located.
- 13. what is the atmosphere made of
- 14. do plants take in carbon dioxide?(y/n)
- 18. what do humans breath?
- 19. what do you do when you throw trash in the ocean?