Across
- 4. important
- 6. certain
- 8. destroy by nature
- 10. related to speech
- 12. single-use
- 13. disadvantage
- 15. an equilibrium state
- 17. not getting wet
Down
- 1. activities that hurt environment
- 2. Emphasize
- 3. new
- 5. whole planet
- 7. lack of something
- 9. a chemical substance that is not good for environment
- 11. planting
- 14. without obstacles
- 16. change