Across
- 2. Noun: dirty things that harm the environment
- 3. Adjective: not clean
- 5. Verb: to make a place free from dirt
- 7. Adjective: safe for nature
- 8. Noun: a container for throwing rubbish
- 11. Verb: to use waste materials again after processing
- 12. Verb: to put rubbish everywhere carelessly
Down
- 1. Adjective: good for the environment
- 4. Noun: things that are no longer useful
- 6. Noun: the natural world around us
- 9. Verb: to make waste less
- 10. Adjective: bad for the environment