Mesopotamia

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Across
  1. 4. Low to High in economy
  2. 5. A rich area
  3. 7. In case of a flood
  4. 8. An early writing form
Down
  1. 1. An early system of laws
  2. 2. Overshadowing building
  3. 3. Having a little extra
  4. 4. Used for farming
  5. 6. A large land between water