Who lead a raid at harper's ferry, virginia?

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.

What was the main reason why the grange started pressuring state governments about farming issues? the railroads charged small farms lower rates than large operations. the grange was not allowed to open up cooperative farm businesses. life for farmers was not improving as they continued to go into debt. farming was becoming less important to the nation’s food supply.

Brainliesttt ! : ) -what was the result of indian independence?