Across
- 2. the substance of which something is made
- 5. put things in groups
- 7. garbage
- 10. a substance made from wood, used to write
- 11. shops
- 15. diminish
- 18. the process or result of reducing
- 19. period of no rain
- 20. to look after the environment
- 21. rubbish
- 23. to use again in the original form or with very little change
- 25. the people who live in a place
- 26. affected by pollution
- 27. a group of people assembled for an action or activity
Down
- 1. a large area of land covered with trees
- 3. to be offered to do something without getting paid
- 4. a person or company that makes something
- 6. to take something off or away
- 8. the planet on which the human beings live
- 9. make less
- 12. the opposite of protect
- 13. to put in the ground young trees
- 14. use something again
- 16. a sealed container for food
- 17. project
- 20. the act of polluting
- 22. to fill again
- 24. make the air, sea dirty