Across
- 2. the ground and soil on Earth
- 3. light material that does not break down easily
- 6. liquid we drink and use every day
- 8. vehicles that cause smoke and pollution
- 10. a long body of flowing water
- 11. what we breathe
- 13. not dirty
- 14. not clean
Down
- 1. when the Earth becomes dirty or unhealthy
- 4. dirty air from fires, cars, or factories
- 5. a large body of salty water
- 6. unwanted or unused things
- 7. things people throw away
- 9. living beings that are not people
- 12. a place where things are made