Across
- 3. a vehicle that uses two or more power sources
- 4. bad for the environment
- 6. likely to get TB
- 8. a bacterial infection known as TB
- 10. all trees in an area are uniformly cut down.
Down
- 1. key to preventing TB
- 2. a progression of forest cuttings leading to the establishment of a new generation of seedlings of a particular species or group of species without planting.
- 5. a type of carrier method that is better for the environment
- 7. practice of harvesting trees in a way that moves a forest stand towards an uneven-aged or all-aged condition, or 'structure'.
- 9. hybrid cars run off of gasoline & _________________