Across
- 2. - cave
- 7. - waterfall
- 8. fuels fossile fuels
- 10. rainbow
- 12. flora
- 14. cave
- 16. lake
- 17. eclipse - moon eclipse
- 18. - desert
Down
- 1. - jungle
- 3. volcano
- 4. - grass
- 5. reef - coral reef
- 6. pollution
- 8. fauna
- 9. galaxy
- 10. rocks
- 11. waves
- 13. recycle
- 15. planets