Environment

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Across
  1. 2. A mixture of smoke and fog.
  2. 3. The natural home or environment of an animal, plant, or other organism.
  3. 4. The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
  4. 6. The energy from the Sun is called this form of energy.
  5. 8. These energy sources can be re-used and are non exhaustive.
  6. 10. The surroundings or conditions in which a person, animal, or plant lives or operates.
Down
  1. 1. The envelope of gases surrounding the earth or another planet.
  2. 5. The depletion in this layer results in global warming.
  3. 7. The unit of noise measurement.
  4. 9. The process of converting waste to re-usable