sustainability

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Across
  1. 3. the state of the atmosphere at a particular place
  2. 6. the ability to be maintained at a certain rate or level
  3. 8. physical rather than biological; not derived from living.
  4. 9. an established or official way of doing something.
Down
  1. 1. the natural home or environment of an animal
  2. 2. relating to the body as opposed to the mind
  3. 4. the surroundings or conditions in which a person, animal,
  4. 5. any of the world's main continuous expanses of land.
  5. 6. the condition of being protected
  6. 7. the phenomena of the physical world collectively,