What is the function of the semicolon in the sentence below? I have only mentioned a few grammatical errors ; many others are there.
1. to follow an introductory element
2.used with a conjunction to link sentences
3. to link
4. to interrupt

Please help!

huck's relationship with food is a prominent theme throughout the novel, and during his time on jackson's island and working his way down river, huck revels in and enjoys his ad hoc dining. in the first chapter, we observe huck is ironically trapped in a "civilized" world, when he would prefer to live freely in nature.

it is the background information on the characters and setting explained at the beginning of the story. the exposition will often have information about events that happened before the story began. the exposition is often the very first part of the plot.