Question

what was a common challenge faced by cities during the industrial revolution?
improved sanitation
overpopulation and pollution
less advancements in technology
decreased immigration

Explanation:

During the Industrial Revolution, people flocked to cities for jobs, causing overpopulation. Industrial activities also led to pollution. Improved sanitation was not a common challenge but a need. There were significant technological advancements, and immigration often increased, not decreased.

Answer:

Overpopulation and pollution