Happy Earth Day

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Across
  1. 1. Vanished or no longer living
  2. 2. Trash in a public place
  3. 6. Envelope of gases surrounding Earth
  4. 8. Decayed material used as plant fertilizer
  5. 9. Relating to living matter
  6. 10. Surroundings in which we live
  7. 11. Energy not depleted by use like water
Down
  1. 1. Production and discharge of gas or radiation
  2. 3. Biological community of interacting organisms
  3. 4. Natural home of an animal or plant
  4. 5. Maintain in original state
  5. 7. Reuse discarded material or objects