Across
- 3. imprints of living things from the past
- 8. forced migration of 13 million people
- 10. dry
- 13. would include police, schools, and roads
- 15. last of the great trading empires
- 17. use of power for personal gain
- 18. early history before history was recorded
Down
- 1. health problem in tropical Africa
- 2. Mansa Musa's empire
- 4. world's largest hot desert
- 5. domination of one country over another
- 6. fertile land dries out
- 7. buffer region
- 8. northern salt traders were mostly _____
- 9. grasslands of Africa
- 11. cutting down trees before they can regrow
- 12. arid dry for part of the year
- 14. our species
- 16. oral historian
- 17. social ranking