Agricultural decline is not a factor that has contributed to the growth of cities. In fact, it is often seen as a consequence of urbanization, as people move from rural areas to cities in search of work and better opportunities.

Urbanization has led to an interdependent relationship between urban and rural areas. Urban areas rely on rural areas for food, water, and other resources, while rural areas rely on urban areas for jobs, education, and other services.

Increased biodiversity is not a negative impact of urbanization on the environment. In fact, urbanization can sometimes lead to increased biodiversity, as it can create new habitats for plants and animals.

The rise of the automobile, the desire for more space, and the availability of affordable housing have all been factors that have driven the process of suburbanization.

High levels of crime is not a challenge facing rural communities. In fact, rural communities typically have lower levels of crime than urban areas.

The concept of the 'urban-rural continuum' suggests that there is a gradual transition from urban to rural areas, with no clear dividing line between the two.

Sprawl is not a characteristic of a sustainable city. Sprawl is a type of urban development that is characterized by low-density housing and a lack of mixed-use development.

Gentrification has been associated with rising housing prices, displacement of low-income residents, and increased crime.

Increased immigration is not a factor that has contributed to the decline of rural communities. In fact, immigration can sometimes help to revitalize rural communities by bringing new workers and businesses to the area.

The concept of 'new urbanism' emphasizes the importance of compact development, mixed-use development, and walkability.

Lower cost of living is not a benefit of urban living. In fact, the cost of living is typically higher in urban areas than in rural areas.

Suburbanization has led to a decrease in the population of rural areas, as people move from rural areas to suburban areas in search of work and better opportunities.

Abundant green space is not a challenge facing urban areas. In fact, many urban areas are working to increase the amount of green space in their cities.

The concept of 'smart growth' emphasizes the importance of compact development, mixed-use development, and transit-oriented development.