Answer:
Prior to the Civil War the economies of the North and the South developed differently in the early 1800s. Although both economies were mostly agricultural, the North began to develop more industry and commerce. ... The growth of industry in the North helped lead to the rapid growth of Northern cities.
A) Primary Source since that person experienced that event directly
If I wanted to get a better salary, my boss and I would have to bargain to figure out what is fair. A big example with this is in factories with working conditions. For example, wanting a certain amount of break time, or having drinks included with their work, etc. I don't know what they examples are, but this definition should help you out. If it doesn't, just comment what the examples are and I'll help figure out which one it is.
Most soldiers died from disease. poor sanitation, battle wounds :)
This is missing the websites URL.