Answer: slavery increasage and beginning of global-warming
Explanation: the U.S. having industrialized created new tools like the mechanical reaper and re-invented the cotton Gin which caused slavery to be a big thing, and annother down-side is enviornmental damage from over-farming the great-plains because that cause many future probelms like the dust-bowl and other-wise the beginning of global-warming.
The workers were underpaid and overworked. They didn't get enough money for the labor they were providing. One also had a short life expectancy if they worked in a factory. The hours in a workday were very long too because the factories were indoors and didn't have to use sunlight to decide business hours.
