Industrialization leads to urbanization by creating economic growth and job opportunities that draw people to cities. The urbanization process typically begins when a factory or multiple factories are established within a region, thus creating a high demand for factory labor.
One of the main effects of industrialization was the migration of people from the countryside to the city in search of work and improvement of living conditions.
In this way, it can be said that industrialization has increased the demand for basic services of housing, sanitation, locomotion and others, constituting essentially for the urbanization of cities, as we live today.
It is a primary source, because it is coming straight from the person who said it. If it was from a person listening, it would be a secondary source. An artifact is something physical, that you can hold, like a dinosuar bone.