Ancient Sumer crossword puzzle

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Across
  1. 1. first superhero
  2. 4. the land between two rivers
  3. 8. ancient way of writing
  4. 9. take over another city-state
  5. 10. belief in many gods
Down
  1. 2. supply of water to land or crops
  2. 3. number of people having no permanent home
  3. 5. area with very rich soil
  4. 6. belief in ONE God
  5. 7. that help humans live their every day lives