Answer:
urbanization - process in which there is an increase in the number of people living and working in a city or metropolitan area. urban sprawl.
rubal - of or relating to the country, country people or life, or agriculture. How to use rural in a sentence.
urban - "related to a city". In that sense, the term may refer to: Urban area, geographical area distinct from rural areas. Urban culture, the culture of towns and cities, sometimes used as a euphemism for African-American culture.