Across
- 2. convert (waste) into reusable material
- 4. unwanted or unusable material, substances, etc
- 6. the air, water and land in or on which people, animals and plants live.
- 9. damage caused to water, air.... by harmful substances or waste
- 10. the destruction of forests by people
Down
- 1. a biological community of interacting organisms
- 3. keep safe or rescue (someone or something) from harm or danger
- 5. the fact or process of a species, family, or other group of animals or plants becoming extinct
- 7. to bring down to a smaller extent
- 8. the weather conditions prevailing in an area in general