A Trip to the Zoo

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Across
  1. 3. based on the truth
  2. 5. an open area of land
  3. 6. the subject being talked about
  4. 7. not known to the public
  5. 8. the flower of a plant
  6. 10. payment for services
Down
  1. 1. warm-blooded animal with hair
  2. 2. the process of bringing together two amounts
  3. 4. growth covering the body of a bird
  4. 9. a metal made of iron and carbon