Across
- 1. A large area of land covered with trees
- 6. To use old things again
- 7. A place where plants and animals live
- 8. Rubbish or trash
- 9. To protect the environment
- 10. Dirty air, water, or land
Down
- 2. The process of planting trees again
- 3. A natural resource needed for breathing
- 4. Energy from the sun
- 5. Cutting down trees