Highlight three merits and any three demerits of a simple majority system of voting.
 

(a) Explain the concept of the sovereignty of a State.

(b) State any five factors that limit the sovereignty of a state. 
 

What major reforms were made in the local government system in Nigeria in 1976?

Describe the functions of the age-grades in the pre-colonial administration in Nigeria. 
 

Highlight the external factors that aided the Nationalists in their struggle for political independence.