Earth Day Crossword Puzzle

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Across
  1. 4. The ___ is the gases surrounding Earth or another planet.
  2. 6. A product grown or raised without the use of chemical or other artificial agents
  3. 8. A place to dispose of refuse and other waste material by buying it and covering it over with soil, especially as a method of filling in or extending usable land.
  4. 9. Decayed organic material used as a plant fertilizer.
  5. 10. A source of energy that is not depleted by use, such as water, wind, or solar power.
Down
  1. 1. The natural home or environment of an animal, plant, or other organism.
  2. 2. The production and discharge of something, especially gas or radiation.
  3. 3. Convert waste into reusable material.
  4. 5. The ___ is a biological community of interacting organisms and their physical environment.
  5. 7. Reuse materials to create a product of higher quality or value than the original.