Give reasons for how migration plays a significant role in changing the composition and distribution of the population.

(i) In India, most migrations have been from rural to urban areas because of the push factor in rural areas.
(ii) There are adverse conditions of poverty and unemployment in the rural areas.
(iii) The pull of the city in terms of increased employment opportunities and better living conditions also leads to migration.
(iv) Migration is an important determinant of population change.
(v) It changes not only the population size but also the population composition of the ur-ban and rural population in terms of age and sex composition.