-pop and -dem

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Across
  1. 6. to reduce the population by a lot
  2. 7. fill up again with many people or animals
  3. 8. someone who isn't noticed or not known by many people
Down
  1. 1. people vote for who the leader is
  2. 2. enjoyed by a large number of people
  3. 3. to fill an area or environment with many people or animals
  4. 4. the number of people living in a region
  5. 5. filled with lots of people or animals