Across
- 4. natural gasses
- 7. no more left of species
- 10. all the rock on earth
- 11. all the air on earth
- 12. parts of a habitat
- 13. you are a being
- 15. loss of the place you live
- 16. when fertile land becomes a desert
Down
- 1. gasses that trap
- 2. all the living things on earth
- 3. all the water on earth
- 5. the place something lives
- 6. an organism that feeds on organic matter
- 8. the Earth gets warmer
- 9. when you cut down a ton of trees
- 14. people the air