Across
- 2. how good or bad something is
- 5. something that may not exist for long
- 6. use again
- 10. take part in
- 11. the action that changes or effects something
- 13. created
- 15. believed
- 16. starting
- 18. something that protects or stops harm
- 19. able to be kept
- 20. to celebrate
- 23. materials that hurt the environment
Down
- 1. show
- 3. new plans to change something
- 4. encouraging, to help something
- 7. to give assistance to
- 8. cycle again
- 9. something that happens that is unusual
- 12. the change that is caused by something
- 14. cut use or make smaller
- 17. express an objection or disagreement
- 21. the natural world
- 22. once a year