Earth Day Crossword Puzzle

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Across
  1. 2. A place to dispose of refuse and other waste materials
  2. 4. The ___ is the layer of gases surrounding the Earth
  3. 5. Decayed organic material used as a plant fertilizer
  4. 6. Maintain something in its original or existing state
  5. 8. The sun's rays, as a source from which power for domestic or industrial use may be generated
  6. 10. Having no life members; no longer in existence
Down
  1. 1. The natural home or environment of an animal, plant, or other organism
  2. 3. An uncolored, unstable, toxic gas
  3. 7. A biological community of interacting organisms and their physical envirment
  4. 9. Converted waste into reusable material