World Culture

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Across
  1. 2. produced or involving production without the use of chemical fertilizers, pesticides, or other artificial agents.
  2. 4. relating to or determined by the sun
  3. 5. convert waste into reusable material
  4. 7. capable of being re-established
  5. 8. the production and discharge of something, especially gas or radiation.
  6. 9. able to be maintained at a certain rate or level
  7. 12. bring someone or something to a lower or weaker state, condition, or role
  8. 14. decayed organic material used as a plant fertilizer.
  9. 15. trash, such as paper, cans, and bottles, that is left lying in an open or public place.
  10. 16. contaminate (water, air, or a place) with harmful or poisonous substances.
  11. 18. the natural home or environment of an animal, plant, or other organism
  12. 19. emitting or relating to the emission of ionizing radiation or particles
Down
  1. 1. the envelope of gases surrounding the earth or another planet.
  2. 3. a gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, chlorofluorocarbons, and other pollutants.
  3. 6. having no living members
  4. 10. capable of being decomposed by bacteria or other living organisms
  5. 11. imbue something with new life and vitality.
  6. 13. a biological community of interacting organisms and their physical environment.
  7. 17. a place to dispose of refuse and other waste material by burying it and covering it over with soil
  8. 20. a colorless unstable toxic gas formed from oxygen by electrical discharges or ultraviolet light.