Answer:
In 1844, Congress finally agreed to annex Texas. On December 29, 1845, Texas entered the United States as a slave state, broadening the irrepressible differences in the United States over the issue of slavery and setting off the Mexican-American War.
Explanation:
Http://www.ushistory.org/civ/8e.asp
The correct answer is increase in industrialization.
Due to the technological advancements of the mid-late 1800's, Americans started to rely more on industry rather than farming. Working in a factory rather than a farm had its perks. People who worked in a factory had guaranteed wages, whereas in farming the amount of money a person makes is dependent on several different factors like the amount of people who want to buy your products, climate, location, etc.
Answer:
Get more into real life situations. For example something that will make this decade more interested. Instead of something for 1875 that everyone will get bored of.
Explanation:
If you're able to accomplish them, you would have more respect for yourself because then you would be able to believe that you yourself can achieve thos3 high standards. And you would believe in yourself more.