A secondary source is a textbook
rail roads were way to move goods and raw martial on mass. rails roads could move supply faster and over a longer distance than using wagons or boats witch were limited on were they can go. causing an industrial boom.
Answer:
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A. the issue of who owned and controlled the land, and for which purposes it should be used, and D. the slaughter of buffalo herds on which Native Americans depended for food.
Because some people can't grow food like farmers people have more trouble trying to find people to do it for thwm
