Answer:
The answer is Narmer. He was the first king to unify the country pacefully as well. My guess as to why we don't know too much about these kingdoms is because there just isn't too much information available from the time about these kingdoms. There are a lack of primary sources.
Explanation:
Narmer was the first king of Egypt to unify the country peacefully (beginning of the 1st dynastic period).
Treatment, prevention, and testing.
Just took the test.
During the Civil War, the South’s use of enslaved labor gave it a way to keep plantations running (Option "C" is the correct one).
Enslaved African Americans, who lived in the South of the US, responded to the American Civil War (1861–1865) in a variety of ways. Some slaves assisted the Confederate war effort, while others were forced to support the Confederacy by working on farms or plantations, in factories and households. There were many slaves who could escape and earn their freedom. Those slaves who remained on their plantations and farms worked as agricultural laborers while their production helped feed both civilians and soldiers. However, much of the wartime agricultural work in the South was carried out by female slaves, since males slaves were hired for the Confederacy's military and industrial works.
The transportation innovation of the time period during the Age of Jackson affected migration patterns in the United States because this enabled sectional interdependence. The innovations included turnpikes, steamboats, canals and railroads. Migration has been easier due to the availability of these innovations. Hope this answer helps.