Across
- 3. planes
- 4. tunnels
- 6. health
- 10. animals
- 14. jets
- 15. building
- 16. oil
- 17. lighting
- 20. paper
- 21. habitats
- 23. utility
- 26. item
Down
- 1. DNA
- 2. tools
- 5. phones
- 7. movements
- 8. brakes
- 9. house
- 11. wires
- 12. railroads
- 13. war
- 18. food
- 19. quality
- 22. highways
- 24. x-ray
- 25. stress