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Answer:
Today, people have divided into groups due to diversity.
Answer:
Life in the city got affected by new factory owners providing important services like garbage collection to city residents, fast urbanization lead to overcrowding and spread of disease, as factories expanded and cities grew, so did police and fire protection
As more people came to trade, the more wealth the city gained. So in general, as the number of trades increased, more and more people arrived at the city making it wealthy and strong in population.