Across
- 4. chernobyl
- 11. Nobel peace 2007
- 12. "Nature"
- 16. John Muir founder
- 17. Defened Sacreed trees
- 19. Industrial waste
- 20. Industrial revolution
Down
- 1. humans
- 2. Became a legal requirement
- 3. Vaccine
- 5. Rachel Carson
- 6. Natural Disaster
- 7. protect the ozone layer
- 8. James Lovelock
- 9. International organization working on the conservation and sustainable use of natural resources.
- 10. technology
- 13. Infection rates calculation
- 14. nature
- 15. April 22
- 18. Green Revolution