1. which culture carried the knowledge of iron tools across south africa's in the series of migrations?
a. nubian's
b. arabs
c. bantu
d. europeans

2. which group of foreign traders first became involved in eastern africa's slave trade?

a. arabs
b. british
c. dutch
d. portuguese

3. scientist have found of early human beings in eastern africa?

a. musical instruments
b. fossils
c. homes
d. clothing