(a) Migration is the movement of people from one geographical area tc another involving permanent or temporary settlement.
Three forms of migration are:
(i) Rural-Urban migration
(ii) Urban-Rural migration
(iii) Urban-Urban migration
(b) Four factors that may be responsible for migration include:
(i) Physical conditions like climate, relief, etc
(ii) Natural disasters like famine, floods, etc
(iii) Insecurity e.g war
(iv) Differences in the availability of social amenities
(c) Three advantages or Rural-Urban Migration:
(i) reduced population pressure on agricultural lands
(ii) Supply of migrant labour
(iii) Promotion of cultural integration.
Three disadvantages of Rural-Urban Migration:
(i) It leads to unemployment
(ii) It leads to high cost of living
(iii) There is pressure on social amenities.