<u>Answer:</u>
The factor of shifting from an agricultural economy to an industrial economy.
<u>Explanation:
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- After the advent of industrialization, most people preferred moving to industrial towns leaving agriculture behind.
- As more people opted to work in industries, the demand for labor automatically subsided and the industry owners started exploiting their workers.
- To protect their own interests, the workers found it necessary to form unions. The membership of such unions gained for workers protection against exploitation by the industrialists.
The Neutrality Acts in general, which were passed in the 1930s, were passed as Europe was once again moving towards armed conflict. The US was a very isolationist country after World War I and wanted to make it clear to the world that they would not intervene.
After Abraham Lincoln was elected president in 1860, the southern states started to secede from the Union. The first state to secede (aka leave) the Union was South Carolina, which left roughly one month after Lincoln was elected. After South Carolina left, 6 other states would secede within the next three months. These states developed their own nation known as the Confederate States of America. This secession would spark conflict between the North and South, resulting in the American Civil War.