What significant social change is often associated with urbanization?

Migration to urban areas for work is a significant social change associated with urbanization because it reflects the shift of populations from rural areas to cities in search of better job opportunities and improved living conditions. This movement often occurs as industries and businesses develop in urban centers, which attract people seeking employment.

Urbanization typically leads to the expansion of cities and the development of infrastructure to accommodate the increasing population. As more individuals migrate to urban areas, this can result in changes to social structures, such as family dynamics and community organization, as well as economic transformations based on the demands of urban living.

In contrast, the option concerning decreased population density does not align with urbanization, since urbanization usually results in higher population density in cities. The mention of increased rural employment is also in conflict with urbanization, which tends to draw labor away from rural jobs. Lastly, while growth of suburban areas can be a phenomenon observed during urbanization, it does not directly encapsulate the essence of the movement towards urban centers that characterizes this social change.