earth day

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Across
  1. 3. to use again
  2. 5. a junkyard/dump
  3. 7. your surroundings
  4. 8. help from the sun
  5. 10. animals living space
  6. 12. make something unclean
  7. 13. the natural home
  8. 15. derived from living matter
  9. 16. fertilizer for soil
  10. 17. capable on being renewed
Down
  1. 1. trashing everywhere
  2. 2. discharge of gas
  3. 4. protect from harm
  4. 6. a colorless gas
  5. 9. consistency
  6. 10. no longer on earth
  7. 11. the air around you
  8. 12. to keep safe
  9. 14. reuse
  10. 18. natural science of relationship