Answer:Eli Whitney
Explanation:In 1794, U.S.-born inventor Eli Whitney (1765-1825) patented the cotton gin, a machine that revolutionized the production of cotton by greatly speeding up the process of removing seeds from cotton fiber. By the mid-19th century, cotton had become America's leading export.
The middle class was different after the industrial revolution than it was before because prior to the Industrial Revolution, Europe had a small middle class. Following the Industrial Revolution, the middle class greatly grew.
After the industrial revolution, the lower classes were been able to "rise up" economically by getting new jobs in factories, thus much of the lower class entered the middle class.
Person vs. Person
Person vs. Nature
Person vs. Society
Person vs. Technology
Person vs. Supernatural
Person vs. self
Person vs. Destiny (Fate/Luck/God)
Animals had meat which gave them food