Answer :
Nubia was divided into two major regions: Lower and Upper Nubia, so called because of their location in the Nile river valley, the 'lower' being further downstream than the 'upper'. Lower Nubia lay between the First and Second Cataracts of the Nile river, spreading in modern southern Egypt and northern Sudan, while Upper Nubia extended between the Second and Sixth Cataracts, in modern central Sudan.
