A primary source gives us first-hand information. it states the automatic facts, and not what has been heard through a second-hand information (sencondary source). it provides information like: direct or firsthand evidence about an event, object, person, or work of art.
and examples are: eyewitness accounts, results of experiments, and statistical data
Okay so the question is asking you about Nobel's brothers. Noble must have something really big or great and they are asking how his brothers helped his do what he did. They are also asking who you think helped Nobel more.
to get away from it to get away from it
A, the Manchus who established the Qing Dyansty
