Across
- 3. supporting long-term ecological balance
- 5. recover and reprocessing of a material
- 7. primary greenhouse gas
- 8. region of Earth where organisms live
- 10. planet where we live
- 12. electric vehicle
- 14. the intentional removal of forests
- 18. state of the atmosphere
- 19. increase in Earth´s temperature
- 20. gases that trap heat in the atmosphere
Down
- 1. Petroleum is an example of this
- 2. long-term weather conditions of an area
- 4. core sample from a mountain glacier
- 6. the outer part of the geosphere
- 9. energy from the sun, wind, waves, etc.
- 11. blocks most solar ultraviolet radiation
- 13. mountains, trees, animals, etc.
- 15. greenhouse gases released in the air
- 16. energy emitted by the Sun
- 17. absorb light and makes electricity