Crossword

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Across
  1. 1. Unite regions under one authority and make it stronger
  2. 3. Old Stone Age
  3. 4. Movement of groups from one place for another for resourses
  4. 5. Growing crops and demesticating animals
  5. 9. Fairness in resources/rights distribution
  6. 10. Focus of a specific job
  7. 12. A person who sells goods
  8. 15. Watering systems
Down
  1. 1. The process of acquiring knowledge
  2. 2. Not easily changed
  3. 6. Extra resources beyond the basic needs
  4. 7. The first writing system invented in Mesopotamia
  5. 8. A political position including a central state and some periphral states
  6. 10. Permanent settled life
  7. 11. Hunting and gathering
  8. 13. A system of beliefs about the god
  9. 14. A worker who makes handmake goods