Across
- 2. having something to do with the sun
- 7. to be able to hold or keep something maintained
- 11. to be able to go back to good shape
- 14. to reuse or make something new out of something old
- 15. the release or discharge of something like gas
- 16. where living and non living animals interact
- 17. no longer existing
- 18. to keep in good condition
- 20. when you throw trash on the ground
Down
- 1. a mixture with dirt that helps plants
- 3. to litter or hurt the enviroment
- 4. recycle thrown away materials and make them of more value
- 5. a place where trash goes
- 6. a place where mamals live
- 8. surrounding the earth with gasses
- 9. were people live and grow in the world
- 10. a toxic gas
- 12. healthy
- 13. protect something
- 19. the study of earths surface and organisms