Earth Day

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Across
  1. 5. capable of being decomposed by bacteria or organisms
  2. 7. garbage dump
  3. 8. to maintain to its original state
  4. 10. relating to the sun
  5. 11. to contaminate with harmful poisonous substance
  6. 14. able to be maintained at a certain level
  7. 16. synthetic material that takes a long time to degrade
  8. 17. trash on the sidewalk
  9. 20. decayed organic material
  10. 21. rescue and recover
  11. 22. reuse
Down
  1. 1. to protect from harm or destruction
  2. 2. the act of clearing a wide area of trees
  3. 3. solid surface of earth, not submerged in water
  4. 4. no longer in existence
  5. 6. production and discharge of something
  6. 9. layers of gases surrounding earth
  7. 11. relating to a planet
  8. 12. where an animal lives
  9. 13. a stock or supply of materials
  10. 14. upper layer of earth where plants grow
  11. 15. capable of being renewed
  12. 18. convert into usable material
  13. 19. food produced without the use of chemical fertilizers or pesticides