Across
- 5. greenhouse effect
- 6. reycle
- 8. ozone
- 12. methane
- 13. fossil fuels
- 15. greenhouse gases
- 16. de agua water vapor
- 18. ozone layer
- 19. reduce
- 20. climate
- 21. reuse
- 22. Earth
- 23. climate change
- 24. de carbono carbon dioxide
Down
- 1. global warming
- 2. deforestation
- 3. temperature
- 4. atmosphere
- 7. solar energy
- 9. weather
- 10. eólica wind energy
- 11. nitrous oxide
- 14. planet
- 17. pollution