Emily's sustainability crossword.

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Across
  1. 3. the animals of a particular region.
  2. 5. relating to the body.
  3. 7. to do with the environment.
  4. 9. the relations between elements of something complex.
  5. 10. relating or resulting from living organisms.
Down
  1. 1. the plants of a particular region.
  2. 2. relating to biology.
  3. 4. physical rather than biological.
  4. 6. the study of the physical features of the earth.
  5. 8. the process of being eroded.