I need help on this question please ( just one question)

European expansion into africa left native regimes intact but had a strong impact on local societies what does this mean

What were three advantages the north had in the civil war? it was fighting most battles on home ground. it had a greater number of soldiers. it had more highly skilled military leaders. it had a stronger navy. it had a better network of railroads. pick three .

Which form of government have the african nations had since independence?