WAEC - Government (2008 - No. 2)
A state performs the following functions except
promoting the welfare of the citizens
encouraging the struggle for power
providing social services
encouraging trade with other states
Shpjegimi
The main functions are maintaining law, order and stability, resolving various kinds of disputes through the legal system, providing common defense, and looking out for the welfare of the population in ways that are beyond the means of the individual, such as implementing public health measures etc.