Across
- 2. the ground where people, animals, and plants live
- 3. a light material that does not break down easily
- 6. liquid we drink and use every day
- 8. vehicles that cause air pollution
- 10. a long body of moving water
- 11. the gas we breathe
- 13. not dirty or polluted
- 14. not clean
Down
- 1. harmful things that make the environment dirty
- 4. dirty air from cars, fires, or factories
- 5. a large area of salty water
- 6. unwanted or unused things
- 7. things people throw away
- 9. living creatures that are not people
- 12. a place where things are made