Answer:
The Athens had an elected government (democracy), while the Spartans had a thing called Oligarchy (basically being ruled by a few). The Athens valued art and stuff while the Spartans valued the military.
The League of Nations was formed to unify many countries. It wasn't very efficient. The United Nations was essentially an improved version of the League of Nations.
This is a personal question, which means that only you can answer it. However, I can give some examples that might help guide your work.
An example of a primary source that you might encounter in your own life is that of a news article. As this article is likely to be written by a reporter witnessing the events, it can be considered a primary source. On the other hand, an example of a secondary source would be a non-fiction book that talks about a historical event. This is because such a book would give a second-hand account of an event based on historical information.
Answer: d. by american indians on american soldiers
Explanation: just took the test :)