The thing which was a major factor that threatened the major unity in the United States in the mid-19th century was:
<h3>The Great Depression</h3>
This refers to the period around 1929 in the United States which has a profound effect on the national economy.
This led to the failure of many banks, increase in unemployment and high deflation rates which all threatened the national unity.
Read more about Great Depression here:
brainly.com/question/441267
They grew wheat,barley,and grapes. They raised sheep,goats, and Mules.
Answer:
They should stay in.
I didn't know if you wanted an explanation on why or just my opinion.
A tsunami it killed more than 230,000
I think the answer is b. most European immigrants such as Germans mostly settled in new York and other new England regions. good luck :)