Across
- 5. gradually wear away
- 8. to protect from harm
- 10. at risk of extinction
Down
- 1. another word for contamination
- 2. another word for dangerous
- 3. trash left lying in a public place
- 4. the act of using something again
- 6. to turn trash into reusable material
- 7. to make smaller
- 9. relating to the sun