19. The steam engine, which drove the Industrial Revolution, was powered by A. coal.
B. oil.
C. steam.
D. wood.

In a planned economy, which of the following does the job of market forces in order to determine the outcomes?

Which option identifies an industrial era secondary source that used photographic evidence to expose the poverty prevalent in urban industrial centers? a. shame of the cities b. the octopus c. how the other half lives d. the dying man

Consider the following invention from the american industrial era. cotton gin – a machine that removed seeds from short-staple cotton which option explains how this invention contributed to the role of the united states as an emerging world power? a. it was in high demand abroad, as many european nations had begun farming cotton. b. it led to the decline of slavery in the south, which enhanced america’s international reputation. c. it freed up many slaves to become factory workers in northern cities, which improved the economy. d. it increased production efficiency of a us cash crop that was in high demand in other nations.