What was a result of creating rail standrdization?

Identiica las similitudes económicas entre las colonias hispana y portuguesa y elabora una lista.

Government powers not provided to the national government in the us constitution but are rather given to the states by the 10th amendment is called?

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.