Rise of humans

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Across
  1. 1. organizing people by importance
  2. 3. become great at one thing
  3. 6. used to meet human needs
  4. 9. using metal to make tools
  5. 10. human civilization first developed
  6. 13. water crops
  7. 14. well developed culture
Down
  1. 2. people stopped being nomadic
  2. 3. extra product
  3. 4. trading goods and services
  4. 5. the new stone age
  5. 7. tame animals and plants
  6. 8. another word for farming
  7. 11. rich nutrients from flood
  8. 12. operates like a tiny country