1. If my memory serves me well, the following options are "salt, textiles, camels, metal goods. According to these options I'd answer like that: Ghana traded its gold for all of the following except camels. In this period Empire of Ghana traded its gold for salt by 1/1.
2. As far as I remember, under Muhammad Ture, the Songhai Empire stretched a thousand miles along the Niger River. Songhai Empire of West Africa was ruled by Muhammad Ture in the XV - XVI centuries. Under his rule Songhai Empire expanded and covered over 1.5 million square killometers.
3. The following options are: It was strongly influenced by Christianity; Europeans developed a string of ports along the coast; It was invaded by hordes of people from the Niger region; Muslims began to settle there in the eighth century. The only correct option is the last one. African rulers accepted the presence of Islam on their lands and mixed it with their culture. Later the rulers were converted to Islam.
4. I am definitely sure that Muhammad Ture ruled Songhai at the height of its power. As it was mentioned in question 2, under the rule of Muhammad Ture Songhai Empire expanded and covered a huge territory in West Africa.
5. Artists from Benin in West Africa, produced impressive bronze statues. Kingdom of Benin of Edo Empire was famous for their bronze art. Benin artists used lost-wax techniques to cant their bronze.
