(A) World’s population can be divided into categories on the basis of residence:— (i) Rural population (ii) Urban population (B) Rural population and urban population differ from each other:— (i) Rural and urban life styles differ from each other in terms of their livelihood and social conditions. The age-sex occupational structure, density of population and level of development. (ii) In rural areas, people are engaged in primary activities whereas in urban areas majority of working population is engaged in non-primary activities.