Geography

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Across
  1. 3. one of richest countries in Africa because of oil
  2. 6. small groups of nomads in Sinai Peninsula
  3. 8. Nigeria largest oil producer, reserves in Gabon, Cameroon
  4. 9. steep face at the edge of a plateau or other raised area
  5. 13. growth Overcrowding in cities
  6. 14. Morocco to Tunisia at edge of coastal plain
  7. 16. worlds largest desert
  8. 18. intentional destruction of a people
  9. 19. HIV, life expectancy falling
Down
  1. 1. dry streambeds that fill with water only after rainfall
  2. 2. one of world’s largest diamond exporters
  3. 4. Basin huge, wet tropical lowland in Central Africa
  4. 5. Unemployment, lack of food
  5. 7. Djouf desert region in eastern Mauritania and western Mali near Niger River
  6. 9. a sea of sand created by high, shifting sand dunes
  7. 10. a gravel covered plain in a desert area
  8. 11. problems Drought, floods
  9. 12. system of laws which denied black Africans political rights
  10. 15. cultural group that lived in North Africa before Arab invaders
  11. 17. River flows through eastern Sahara, flows north through Egypt to the Mediterranean