If one of the answers is machines then that is the answer
Answer:
Explanation: During the 11th century, however, feudal life began to change. Agricultural innovations such as the heavy plow and three-field crop rotation made farming more efficient and productive, so fewer farm workers were needed–but thanks to the expanded and improved food supply, the population grew.
Most of them came because of civil unrest, severe unemployment or almost inconceivable hardships at home.
A tariff is a tax<span> on imports or exports... how are they both individual answers?</span>
