Which city became a major hub for the American steel industry in the late 19th century? Chicago Pittsburgh Detroit Cleveland None Who is often considered the "Steel King" and a key figure in the American steel industry? Andrew Carnegie John D. Rockefeller J.P. Morgan Henry Ford None What technological innovation revolutionized the steelmaking process in the late 19th century? Steam engine Bessemer process Telegraph Cotton gin None Which major infrastructure project in the late 1800s drove the demand for steel in the United States? Transcontinental Railroad Erie Canal Panama Canal Hoover Dam None What economic philosophy supported the growth of the American steel industry during this period? Laissez-faire capitalism Socialism Communism Mercantilism None Time's up
