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