Select a suitable heading for the passage.
Directions: Read the following passage and answer the questions given below.
Urbanisation is a process which has taken place at a rapid pace in recent years, in different countries, due to the influence of a variety of reasons. Urban area is an outgrowth of the existing rural populace. Hence, migration plays a key role in the growth of cities in any country. It is the chief factor which has helped urban growth in almost all countries in the modern times. In fact, the cities could grow only because of the flocking of large number of unskilled labourers to their centres from the villages. Usually, migration is from rural to urban centres and centres of low culture to centres of high culture. Most common is the migration of peasants, workers and villagers to towns in search of work. They are compelled by their own miserable conditions and allured by the attractions and temptations of city life. This rural to urban migration is very common in Third world countries. Long distance migration between cities in search of education and employment has also increased and this adds to the growth of a particular city. In fact, most of the people of our urban middle class and clerical occupations have a rural base or they come from a rural background.