Across
- 3. the government
- 5. the forest
- 7. to protect
- 8. the danger
- 10. the whale
- 11. the cow
- 12. the energy
- 14. to pick up
- 18. to take care of
- 19. the nature
- 22. the global warming
- 23. the law
Down
- 1. the factory
- 2. to breathe
- 4. the land, soil
- 6. the environment
- 9. the pollution
- 12. the stone
- 13. to improve
- 15. the lake
- 16. the sky
- 17. to avoid
- 20. of glass
- 21. the population