Final answer:
Rapid movement into the cities caused problems such as overcrowding, inadequate housing, diseases, congestion, pollution, crime, and racial tensions.
Step-by-step explanation:
Rapid movement into the cities caused several problems. One significant problem was overcrowding, which led to inadequate housing and cramped living conditions for working-class urban dwellers. These living conditions had terrible ventilation, substandard plumbing, and sanitation, resulting in the spread of diseases, such as typhoid and cholera. Additionally, the rapid urban growth also caused issues of congestion, pollution, crime, and racial tensions. Finally, the challenges of urbanization were often rooted in deep class inequalities, shaped by racial divisions, religious differences, ethnic strife, and corrupt local politics.