how did industrialism in the united states lead to changes in the relationship between companies and laborers and the development of labor unions?

During world war if an artist published an editorial cartoon criticizing the american entry into the war that artists was guilty of

The factory system of the early-19th century caused a) a decrease in farm production. b) an increase in rural population. c) an increase in urban population. d) high unemployment in other areas.

What emperor was given credit for having the aqueducts built