Africa word puzzle

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Across
  1. 5. One of the reasons why they built 10 feet tall walls
  2. 9. The most respected job in Jenne-jeno
  3. 10. These people look at old things to learn more about the past
  4. 11. More prized than gold in West Africa
  5. 14. Definition of "Supernatural"
  6. 15. the normal shape of the houses
Down
  1. 1. By this time people have settled to farm south of the Sahara Desert
  2. 2. The ocean that borders the West and south of Africa
  3. 3. Major factor in the rise of kingdoms in West Africa
  4. 4. Meaning extra
  5. 6. Jenne-Jenno was used for this
  6. 7. The biggest desert in Africa that goes on for 3.5 million miles
  7. 8. The semi desert south of the Sahara
  8. 12. The river that Jenne-Jenno was built on
  9. 13. The material that houses in Jenne-jeno used later on