earth day

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Across
  1. 2. reusing stuff that is trash
  2. 5. the production and discharge of something, especially gas or radiation.
  3. 6. a layer in the atmosphere
  4. 7. above the sky is the
  5. 12. place trash goes
  6. 13. sun
  7. 14. bigger than a habitat
  8. 16. bigger than environment
  9. 19. fresh and nutrients full
Down
  1. 1. to keep something for a long time
  2. 3. type of dirt
  3. 4. signs and cops tell you not to do this
  4. 5. study of the earth
  5. 8. lower than the environment
  6. 9. not here anymore
  7. 10. car factories and cows do this to the air
  8. 11. to protect something
  9. 15. a resource that can be used and reproduced fast
  10. 17. to withstand something
  11. 18. one of the 3 rs that you need to do