Final answer:
People faced problems such as lack of job opportunities, overcrowding and expensive housing, and traffic congestion and pollution when they moved to urban areas.
Step-by-step explanation:
Problems People Faced When They Moved to Urban Areas
Lack of job opportunities: As more people move to urban areas, the competition for jobs increases, making it difficult for newcomers to find employment.
Overcrowding and expensive housing: Urban areas often struggle to meet the demand for housing, leading to overcrowded living conditions and high rent prices.
Traffic congestion and pollution: The increase in population and cars in urban areas can lead to more traffic congestion and higher levels of pollution.