Across
- 3. Cutting down a large area of trees
- 6. Gas produced by livestock through their digestion and waste
- 10. Release or discharge of a substance
- 11. Contaminating substance
- 14. Colourless, odourless gas produced when fossil fuels are burned
- 15. Originating from human activity
- 17. Gases that trap heat in the atmosphere
- 18. State of the atmosphere at a particular time
Down
- 1. Pattern of weather over a long period of time
- 2. Permanently frozen ground which is thawing due to climate change
- 4. Places of storage
- 5. Length of time a substance stays in a particular place
- 7. Ocean uptake is an example of a carbon ......
- 8. Gas made up of three oxygen atoms that protect us from harmful UV rays
- 9. Respiration is an example of a carbon ......
- 12. Mixture of gases that surround the earth
- 13. Formed over millions of years from the remains of living organisms
- 16. Dark coloured substance mined and burned as fuel