Across
- 3. colorless gas
- 6. what rays does the greenhouse effect use
- 8. burning of fossil fuels
- 11. coldest layer/meteorites burn up here
- 13. 3 main gasses make up this
- 14. can happen more frequently if sea water rises
- 15. most abundant gas in the atmosphere
- 16. how high the sea is from a certain point
- 18. what heats up the troposphere
- 20. weather occurs here
- 22. blocks out ultraviolet rays
- 23. what heats up the thermosphere
- 24. comes out of our cars when we burn fuel
- 25. can be on fire whether natural or man made
Down
- 1. what actually heats up the Earth's atmosphere due to the greenhouse effect
- 2. between the troposphere and the stratosphere
- 4. freshwater's main storage
- 5. the animal that produces the most methane
- 7. the cause of the Earth heating up
- 9. temperature increases as altitude increases
- 10. 78% nitrogen, 28% oxygen, 1% other (what are these percentages)
- 12. produces because of photosynthesis
- 17. vapour that is in a gas state
- 19. ozone layer
- 21. cause of the ice caps melting