Yes it's the same. they are just different terms but for the same event.
B. battle of Gettysburg
The confederacy was cut in two the day after the Gettysburg battle.
B) they increased their wealth and power by trading slaves to Europeans in exchange for weapons and other goods
That would be unskilled laborers.
The middle class wasn't poor like the unskilled workers in the factories and farms, but they weren't very rich either like the corporation owners and high-up businessmen.
Answer: it was their duty to spread democracy.
Explanation:
Manifest Destiny was an idea that was really famous in the 19th century with Americans. It was the idea that Americans were destined by God to spread across North America, the ideas of capitalism and democracy.
This type of thought drove Americans increasingly westward as they pushed to reach the Pacific and gave them 'justification' for the eviction of Native tribes from their ancestral lands.