Hello there! The cotton gin would be your answer :)
During the pre-civil war era, cotton was extremely hard for slaves to do by hand, and slowed down production of cotton. This machine, created by Eli Whitney and helped speed the process of collecting cotton which dramatically increased the profit of Southern plantations.
I hope this helped! If you have any more questions just comment or message me :) I can give a more in-depth lesson about the effects of the cotton gin if you'd wish. Good luck with school!
Here's a picture showing how the cotton gin works (found on slideshare.net)
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Tip: instead of posting questions search them up on google lol.
Answer:
Bad harvests, warfare, rebellions, overpopulation, economic disasters, and foreign imperialism contributed to the dynasty's collapse. A revolution erupted in October 1911. In 1912 the boy Emperor Xuantong (Hsüan-t'ung, commonly known as Henry Pu Yi) abdicated, or stepped down, from the throne
Answer:
The senate is the upper house and represents the state's. The house of Representatives is the lower house and represents the people or citizens.
The three fifths compromise is described as: enslaved persons count as 3/5 of a person in determining a states population.
I hope this helps