What could happen to people who refused to answer the questions of the house un-american activities committee?

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 form of government is powers of states? first letter of the answer is r.

6. how are goods and services distributed in a free market system?