b) Steam locomotive
Peter Cooper was an American industrialist, inventor and philanthropist. He designed and built the first American steam locomotive, the Tom Thumb in 1830. And he did it at the time when the lack of waterways in certain areas required new form of transportation.
Low wages are associated with increased stress, low self-esteem, and a greater tendency to engage in unhealthy behaviors like smoking. The health effects of low wages become a vicious cycle, in which poor health hinders employment and income growth.
They were having conflicts that they couldn't solve and it eventually lead to the Civil War. Hope this helps
