How did the USA become involved in World War II?

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.

Read the excerpt. this is an example of a strong conclusion because it summarizes why the author thinks joan of arc is a significant historical figure. leaves out evidence that was already proven in the body of the essay. adds information that was originally omitted in the body of the essay. summarizes everything the author has written without providing an opinion.

Controlled eastern europe a: communist countries b: democratic countries