Which of the following best explains why industrialization increased dramatically in the United States during the late nineteenth century? A. Immigration and urbanization provided a surplus of cheap labor.
B. Government-mandated education led to a more well-educated populace ready and able to compete with other industrial nations.
C. The discovery of oil reserves made America the richest nation in the world.
D. State-supported universities focused primarily on providing the skills necessary for the nation's continued industrial development.

photos creat an ovveral image of the civil war

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can someone me with this question:  

1) the end of the conflict between the north and the south didn’t just mark the end of a war; it marked the end of an entire way of life.” which statement best describes what this statement means?  

a) the southerners were no longer free and were controlled by the northern states.

b) the industrial economy in the north was not sustainable.

c) slavery became illegal, which changed completely the south’s labor force and the agricultural economy was destroyed.

d) the states decided to relinquish their independence and return to britain’s rule.    

no, the constitution said nothing about adding territory. president jefferson said he had authority to make treaties so he called the purchase a treaty.