Across
- 2. plants
- 6. you throw this away
- 11. nature
- 12. different types of natural formations
- 13. planet
- 14. teach
- 15. to make smaller
Down
- 1. to keep tidy
- 3. reprocess
- 4. animals
- 5. dirty air
- 7. animals home
- 8. use again
- 9. close to extinction
- 10. crisp and bright