Across
- 2. which deteriorate
- 5. wooded animal only in canada
- 8. in the forest
- 9. variety of species
- 10. study of the environement
- 13. atmosphere
- 15. countrie
- 17. greenhouse gas
- 19. action of destroying many trees
- 20. color
Down
- 1. grill
- 3. that must be protected
- 4. international organisation for ecology
- 6. put forward
- 7. white
- 11. natural
- 12. same the robson mont
- 14. who was the there before
- 16. liquid who pollute
- 18. flamme