"Chaotic emotions of adolescence" to me it sounds as though it motivates Lizabeth because she acts like a child- it's almost an excuse, it seems.
It is called the diction.
Angst, in writing, is like a dark story. One that has a sad, dark, etc. plot to it. On the other hand, tone is how a writer feel towards a topic.
By the nineteenth century, some of the ancient English families had lost their power, wealth, and influence.
In the passage Tess and Angel are looking at an old house once owned by the d'Urbervilles. Angel says, "There is something very sad in the extinction of a family of renown, even if it was fierce, domineering, feudal renown." This shows that some of the families that were once powerful in England have lost their power, wealth, and influence.
I would say understatement, i guess it could be sarcastic, but I've never learned sarcasm as figuritive language, if it was my question I would say understatement.
"Graphic Novel" is a format<span>, not a genre. Graphic novels can be fiction, non-fiction, history, fantasy, or anything in-between. Graphic novels are similar to comic books because they use sequential art to tell a story. Unlike comic books, graphic novels are generally stand-alone </span>stories<span> with more complex plots.</span>