People moved to the cities to find jobs because they could not find jobs anywhere else. Most people go their work in factories. Many of the jobs where unsafe and many people lost fingers or other body parts.
According to sources, the data gathering for this type of research can make use of archival data. Some photographs are taken few years ago and can be compared to the present condition.Thank you for your question. Please don't hesitate to ask in Brainly your queries.
