During the conquest of Mexico, outbreaks played an important role that favored the Spaniards. There were several outbreaks of smallpox that killed thousands of natives. Smallpox was introduced into America by the Europeans. Why were the natives particularly affected by smallpox outbreaks

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.