What factors led to the changing of American opinion to support enterance to World War I?

1. What were the major causes of World War I?
2. What factors led to the changing of American opinion to support enterance to World War I?
3. Discuss the problems of technology in World War I? How did these impact techniques in fighting?
4. How was the 1920s an era of prosperity?
5. What drew black southeners to the North in the early 1900s? What was the impact? How was it as outgrowth of the prosperity?
6. Discuss the causes of Great Depression. What were the government responses?

I would prefer questions 1, 4, and 6 to be answered. I do prefer it to be answered more than 900 words. Please use citations from the following links. I will include links of my powerpoint slides from class. Please write medium level not too simple words or not too hard complex words. And in detail using the information from my slides. Please let me know if the link does not work. To access/open the slides copy and paste into different browser. Thank you so so much.

Progressive era:
https://docs.google.com/presentation/d/1_X4drg-L8xN3GPr9tRQgHGgt5v-QTa_G/edit#slide=id.p1

The Roaring Twenties:
https://docs.google.com/presentation/d/1APEBpvDTi3MZ0pCGVBQ3QZZI08RGe1Fl3u8ed4TPh3g/edit#slide=id.p1

World War I:
https://docs.google.com/presentation/d/1j9MXzgzG6iiQhg8DpekzTd4kYdlKc1cNvJA7eDQ7zwY/edit#slide=id.p

Great depression:
https://docs.google.com/presentation/d/1JyCEcMO4sv70shn_-o7xFf19OO0Y82ir4K6Du8KNyDc/edit#slide=id.p1

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