What is one cause and one effect of the mexican war

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.

What type of legislation has the member of congress introduced? a: a joint resolution b: a concurrent resolution c: a private bill d: a public bill

Brainliestttme : ) how did the soviet union try to maintain control?