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:
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Cases involving violations of the U.S. Constitution.
Cases between citizens of different states if the amount in controversy exceeds $75,000.
Cases involving violations of federal laws.
Claiming Bankruptcy.
copyrighting or patenting.
<span>b. became even worse than before the war. </span>
Answer:
increasing demands of new industries, an expanding population, agriculture, pollution, reckless development, and poor planning, especially in northern areas where there isn't much water.
Explanation:
I think A .Great Britan and France in not all the way sure
