SS vocabulary

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Across
  1. 4. the Spreading of customs or beliefs.
  2. 6. An area with very little or no water.
  3. 7. extra, left over supplies
  4. 11. Land becomes dryer and less productive.
  5. 13. Grow enough crops to live not sell.
  6. 15. They hunt and gather food.
  7. 16. A cultural background.
  8. 17. Wanderers, or mobile
  9. 18. Grow food to sell and live off the income.
  10. 19. Wind and water wear away land.
Down
  1. 1. a shortage of rainfall
  2. 2. on nation conquers another.
  3. 3. A native and nomadic tribe. They speak Maa.
  4. 5. The application of water to land.
  5. 8. the stater of not having enough.
  6. 9. The action of clearing trees.
  7. 10. a shortage of supplies.
  8. 12. a form of government where a person or group has absolute power.
  9. 14. Hard railroads bridges, soft knowledge and skill.