Across
- 3. biodiversity
- 6. smog
- 8. ground, soil
- 10. non-renewable
- 11. earthquake
- 12. clean air
- 13. erosion
- 14. environment
- 16. responsibility
- 17. climate
- 18. natural resource
Down
- 1. oil
- 2. ozone layer
- 4. planet
- 5. risk
- 7. drought
- 9. landslide
- 12. garbage container
- 15. flood