Across
- 7. harmful materials in the environment
- 8. forest with a lot of tall trees
- 9. keep something the same or prevent from damage
- 11. to hurt or damage
- 12. the natural world
Down
- 1. surroundings or conditions
- 2. land not in towns or cities
- 3. when an animal/plant stops to exist
- 4. planet we live in
- 5. increase in the world temperature
- 6. person travelling or visiting a place
- 8. changing waste into reusable material
- 10. a type of heavy fog