Across
- 1. Rain Forest
- 3. To save
- 5. Electricity
- 8. Solar
- 9. The moon
- 11. To conserve
- 15. Against
- 16. Energy
- 17. Earth
- 18. Valley
- 21. Plant
- 22. Economical
- 23. Ecological
Down
- 2. Air conditioning
- 4. Hill
- 6. Outer space
- 7. desierto desert
- 10. Nature
- 11. Polluted
- 12. Efficient
- 13. Pollution
- 14. Heat
- 18. Town
- 19. Forest
- 20. To eliminate
