The hamburger originated in Germany
The outbreak of World War II spurred the mobilization of America military industrial might
The first president and a general at some point? I know he was president, I’m not so sure about the general part.
But you can search him up, hope this helps you
Answer:
yes ,the distance between the object and image is equal
The correct answer to this open question is the following.
Although the question is incomplete because it does not provide a specific reference about the author of the letter or any other reference, we can comment on the following.
A primary source is the piece of information that was written by a character or an individual that lived in the moment of the event, was part of the event, or witnessed the event. This individual could have written a letter, or a document -including a book. Or he/she took a photograph. Or was part of an interview. The secondary source includes information from a third person who was not part of the time or event but has found information through other resources. It is the case of an encyclopedia or researchers/historian books.
