B4 2020 Enav

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Across
  1. 3. the hottest layer of atmosphere
  2. 4. the species to blame for this
  3. 6. the change in our climate
  4. 9. polar regions melting causes this
  5. 11. majority gas of the atmosphere
  6. 14. less than one percent of atmosphere
  7. 16. country most responsible for global warming
  8. 17. this will occur in coastal regions
  9. 19. the rapid heating of our planet
  10. 21. the gas form of water
  11. 22. a gas that soaks up harmful UV rays
  12. 23. layer that meteors burn up in
  13. 24. layer plains fly
Down
  1. 1. layer we live in
  2. 2. layer made up of ozone in stratosphere
  3. 5. Chemical makeup is Co2
  4. 7. produced from cow farts
  5. 8. the four layers make up this
  6. 10. the solid form of water
  7. 12. also known as laughing gas
  8. 13. the poles and where icebergs melt
  9. 15. the star that heats up the planet
  10. 18. takes up 21 percent of atmosphere
  11. 20. animals that produce a lot of methane