How do Martin's feelings about the medicine bag change over the course of the story? ( i will put the passage below)

What is the main idea of this paragraph from the volcanoes section of the ready. gov website

Which two statements about first-person narration are generally true? the narrator can be a witness or a reteller of events. the narrator always provides reliable information. o the narrator accurately knows past and future events. the narrator is a character in the story. the narrator knows everything about all characters.

In researching his history report about the civil war, why is ariq most likely to use secondary data than primary data?