Across
- 4. earth/land
- 7. popluation
- 8. endangered species
- 10. oil spill
- 12. waste
- 13. recycling
- 14. drought
- 16. nature
Down
- 1. Wild animal life
- 2. heaven/sky
- 3. public transportation
- 5. forest fire
- 6. forest
- 9. cardboard
- 11. illegal hunting
- 15. jungel