Across
- 3. get rid of.
- 4. things without any use.
- 6. reduce.
- 9. waste.
- 12. rules we must respect in society.
- 13. when everybody is rich.
- 14. send out a smoke or a bad smell.
- 15. rubbish.
- 16. where we live.
- 17. reusing what we throw.
- 18. a change from a positive state to a negative state.
Down
- 1. the most important natural resource.
- 2. the opposite of produce.
- 5. a general study.
- 7. a change to what's better.
- 8. enlarge.
- 10. things used once then thrown.
- 11. to affect negatively.