"A research paper by a social historian that describes and analyzes African American pop culture in the early twentieth century." and "A research paper by a cultural historian that analyzes different jazz styles and how they developed."
The correct aspect of the United Nations among the options is "is funded only by voluntary dues" (A).
The United Nations doesn't have the authority to enforce laws in any country. It can only recommend that certain treaties, which it helps to create, be respected through actions it can help technically to design.
UN was created in wartime as a means to find and keep peace in the world. It also promotes international cooperation and friendly relationships. It does have a military, which is composed of voluntary men and women from different countries, but it's size changes according to each mission.
Although it might encourage international trade since it encourages peaceful relations, it's prime objective doesn't concern trade. The organization responsible for promoting international trade would be the World Trade Organization.
Because of the large amount of labour saved by giving workers specialized tasks in Industrial Revolution-era factories, some classical economists as well as some mechanical engineers such as Charles Babbage were proponents of division of labor.
For the first one, older books and stuff like that say there are 7, but more recently some geologists think they're 8. So, for right now, it's false.
True, Ancient Greece was a model for the U.S. government, but the founders left a few things out. But there are many facets of Greek democracy that didn't catch on.
True.
So you're answers are: True, True, False