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
A country selects its leader by determining the will of the majority voters
B.
Water is a solid because it freezes, sooner or later. It turns to ice, and ice is a solid.
It’s a gas because if you boil water, the water changes from a liquid to a water vapor. As it cools, it turns to steam.
The liquid water is what we drink. It is a fluid and wet, which is liquid.
