Sara

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Across
  1. 1. Set of many people
  2. 3. Dogs have four
  3. 6. Drawings on the street
  4. 7. Pollute the streets
  5. 9. Fish swim thanks to them
Down
  1. 2. Cats have it
  2. 3. People without money
  3. 4. All animals have it
  4. 5. Birds have two
  5. 8. Elephants have it