Which two statements explain why the writings of Alexis de Tocqueville were important?

How did the american revolutionary war change how some americans viewed the enslavement of african americans?

What is the main idea of this excerpt? 1.1.3

How did the technology of the late 1800s affect the growth of cities? select one: a. cities were able to expand outward because of additions to railroads. b. electric streetcars enabled the wealthy city dwellers to move to the first suburbs. c. advances in steel and metal technology allowed for the development of the skyscraper, which allowed cities to grow upwards. d. all of these are correct.