OSA and NSA

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Across
  1. 1. To train animals and plants
  2. 4. used with reds, blacks and was on cave walls
  3. 7. having an oversupply of something
  4. 8. started 2 million years ago and ended 12,000 years ago and had stone tools
  5. 9. A culture with a developed system of religion, learning and government
  6. 10. the exchange of goods between people
Down
  1. 2. did other jobs instead of just farming
  2. 3. farming animals and plants
  3. 5. people who hunted and lived in caves
  4. 6. a group of people that work together