Answer:In the 1800s 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. New communities, known as suburbs, began to be built just beyond the city.
Now there is still traffic, more modern cars, more modern houses, better job earnings, more pricy items, more communities,more technology like tvs and phones.
Step-by-step explanation: