Across
- 4. : Chemical products used in farming
- 8. : Tiny particles that pollute
- 9. : Dangerous nuclear energy
- 12. : Layer that protects from UV rays
- 13. : Toxic industrial substances
- 16. : Soil wearing away
- 17. : Sector that generates pollution
- 23. : Glacier ice turning into water
- 24. : Gases released by factories and cars
- 26. : Substances that kill insects
- 29. : Excessive cutting of trees
- 30. : Auditory pollution
Down
- 1. : Change in ocean pH
- 2. : Source of polluting gases
- 3. : Long period without rain
- 5. : Excess water covering land
- 6. : Increase in global temperature
- 7. : Non biodegradable material
- 10. : Presence of harmful substances in the environment
- 11. : Oil leak in the ocean
- 14. : Disappearance of species
- 15. : Inefficient use of resources
- 18. : Expansion of cities
- 19. : Dangerous elements for health
- 20. : Poisonous gas from combustion
- 21. : Forest fires that destroy ecosystems
- 22. : Excessive exploitation of marine life
- 25. : Remains of materials
- 27. : Toxic fog caused by pollution
- 28. : Solid waste that pollutes