Across
- 5. an important way for human development
- 6. tree or forest area that is mature
- 8. every tree in a specific area is removed
- 10. one of the way to use fire for
Down
- 1. more than 650 different definitions
- 2. at least 20% canopy
- 3. coniferous forest
- 4. selected trees are cut
- 7. able to keep in a certain level in the future
- 9. a cluster for plants and species