S.S. homework/project assigned to me by my teacher

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Across
  1. 1. A system of knots used for math
  2. 3. Began in Mesoamerica and caused hunters to be no more
  3. 7. Used natural resources for food, shelter, and clothing and they ate meat
  4. 11. Has a Greek word and had rich volcanic soil with a mild climate
  5. 12. Is an isthmus
  6. 14. Not permanent
Down
  1. 2. To describe something in the future
  2. 4. Africa, Europe, and Asia
  3. 5. Many civilizations offered human sacrifices for good things to happen
  4. 6. Was probably the most powerful Aztec ruler
  5. 8. Admired the Maya and the Toltec so they borrowed much from their cities and cultures
  6. 9. Might have built the oldest culture in Mesoamerica
  7. 10. To depend/rely on something or something
  8. 13. Corn
  9. 14. Grew maize, beans, peppers, and introduced metal working to Mesoamerica
  10. 15. Each city-state was ruled by a king who is believed to have descended from the sun god