What did olmstead, otis, sullivan, and roebling have in common? a. they were all landscape architects. b. their ideas changed the way modern governments function. c. their contributions and innovations made modern cities possible. d. they all built industrial empires as business tycoons.

What role did the catholic church play in the development of the heliocentric theory promoted by copernicus and galileo?

As a result of the work of the house un-american activities committee, hundreds of people were

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.