USA HISTORY

Detailed explanation-1: -Industrial expansion and population growth radically changed the face of the nation’s cities. Noise, traffic jams, slums, air pollution, and sanitation and health problems became commonplace. Mass transit, in the form of trolleys, cable cars, and subways, was built, and skyscrapers began to dominate city skylines.

Detailed explanation-2: -The Industrial Revolution caused towns to turn into cities, and existing cities to swell, both in terms of population-with new arrivals from Europe and rural areas of the United States-as well as their geographic footprint, now that they were home to factories and other buildings required in manufacturing.

Detailed explanation-3: -The cities that grew the most during industrialization were New York, Chicago, and Philadelphia. New York grew to 3.5 million. Chicago grew to 1.7 million. And Philadelphia grew to 1.3 million.

Detailed explanation-4: -The new jobs for the working class were in the cities. Thus, the Industrial Revolution began the transition of the United States from a rural to an urban society. Young people raised on farms saw greater opportunities in the cities and moved there, as did millions of immigrants from Europe.