What was the bolsheviks primary instrument for spreading the message of marxism beyond europe?

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.

The ideas contained in the declaration of independence was most influenced by a. absolute monarchy b. the federal system c. anti-authoritarianism d. the social contract theory

Discuss the main ideas of eugenics, and explain why it is no longer a prominent belief in the united states.