Across
- 3. choir
- 5. to turn off
- 6. out of season
- 9. clean
- 10. polluted
- 11. noise
- 12. food
- 13. graffiti
- 15. to purchase
- 16. stairs
- 18. swimming
- 19. homework
- 21. detention
Down
- 1. school
- 2. to manufacture or make
- 4. class
- 5. to economise
- 7. reusable
- 8. dirty
- 9. everywhere
- 14. fitness
- 17. to consume
- 20. healthy