Across
- 1. Is 21% of greenhouse gasses on Earth and caused by photosynthesis
- 3. Process of cutting down trees for urbanization or agriculture but as a result more carbon dioxide is produced
- 4. Dangerous rays released by the sun
- 9. Produced through agricultural processes, livestock, and manure
- 10. Is 1% of greenhouse gasses in Earth
- 11. The outer most layer which has lightest atmospheric gases such as hydrogen and helium
- 13. A substance that contaminates the air such as fossil fuels
- 16. The layer that has the Ozone layers which protects us from ultraviolet rays
- 17. Are gasses either then nitrogen, oxygen, and carbondioxide
- 18. Pose no threat to the environment
- 22. Where weather occurs and lowest layer
- 23. Is 78% of greenhouse gasses on Earth
- 24. The average climate of the entire Earth
- 25. Is caused by factories from oil,coal and natural gas
Down
- 2. When more greenhouse gasses get trapped in the atmosphere causing drastic changes in the climate
- 5. Ionized layer of Earths atmosphere
- 6. The layer that includes a large part of the ionosphere
- 7. Directly above stratosphere and is the coldest layer in the atmosphere
- 8. The gasses in the atmosphere that absorb radiation
- 12. Caused by heat evaporating water into the air
- 14. thin layer that exists in the stratosphere which absorbs ultraviolet rays
- 15. Generally emitted from factories through fossil fuel combustion
- 19. Is a naturally occurring hydrocarbon gas mixture that consists primarily of methane
- 20. A mixture of gasses that surround the Earth
- 21. Man made greenhouse gas