1- Cooper's steam locomotive was more practical for carrying PEOPLE, COAL AND MAIL.
It was called Tom Thumb, and was constructed by Peter Cooper in 1830.
2- The correct answer is B. When there is war production increases, because governments maximize efforts to economically sustain war expenditures, and supply their troops with resources.
3- The correct answer is B. The Embargo Act of 1807 made the United States look stronger because they were more self reliant, because they didn't import any goods, producing them by itself.
4- The correct answers are A, C and D.The steamboat was used for many purposes. Some of them included international trade, private cruises and river transportation, mainly in the Mississippi.