17. How did the innovations of the industrial revolution have a social impact on society? 18. What are contributing factors that led to the establishment of the plantation system in America?

19. What contributed most to the rapid industrialization of the United States in the years before the civil war?

20. What allowed the United States to become a top producer of steel?

21. What was the most significant result of the construction of the Erie Canal?

22. What region of the U. S. was most densely populated during the industrial revolution?

23. What region was the least densely populated?