Across
- 2. Use something again instead of throwing it away
- 4. Harmful substances in the environment
- 7. Keep something in good condition
- 9. Save and use wisely
- 10. Trash left lying around carelessly
- 11. Careful use of resources
Down
- 1. Turn waste into new materials
- 3. The natural world around us
- 4. Keep something safe from harm
- 5. Unwanted or unusable materials
- 6. The process of rotting
- 8. Use less of something to save resources