Harappan civilization

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Across
  1. 2. Indus River
  2. 4. Hwang Ho River
  3. 5. Bath rectangular tank
  4. 6. an advanced stage of human cultural development
  5. 8. Nile River
Down
  1. 1. period when man used both stone and copper tools
  2. 3. Euphrates and Tigris River
  3. 7. used by traders to stamp goods