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  1. Which geographic feature limited the expansion of West Africa civilizations?
ADrakensberg Mountains
BGreat Rift Valley
CNile River
DSahara Desert

  1. How did camels help increase trade across geographic barriers of northern Africa?
AThey pulled loaded carts much faster then horses did.
BThey needed little sleep and rarely became ill.
CThey carried heavier loads and traveled far without water.
DThey traveled at night more easily then most other animals.

  1. How did Arab Muslims primarily interact with East African city states?
AThrough conquest
BThrough pilgrimage
CThrough scholarship
DThrough trade