Discuss the overview of nigeria economy

 Economy - overview: Nigeria is one of Sub Saharan Africa's largest economies and relies heavily on oil as its main source of foreign exchange earnings and government revenues. ... The government also is working to develop stronger public-private partnerships for roads, agriculture, and power.

Explanation:

Economy - overview: Nigeria is one of Sub Saharan Africa's largest economies and relies heavily on oil as its main source of foreign exchange earnings and government revenues. ... The government also is working to develop stronger public-private partnerships for roads, agriculture, and power.

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

the name of the theory is landmass theory.