"If you don't consider the audience that you're writing for, you may find yourself without an audience at all," the creative writing instructor cautioned her students. is it nonrestrictive or restrictive

restrictive

Explanation:

A restrictive clause is one that identifies and limits a preceding noun so as to preserve the true meaning of the sentence. Words such as who, that, and whom are used in such clauses. Non restrictive clauses provide more information that can be removed from the sentence without altering its true meaning.

The identifying function in the sentence above is seen in the clause;

that you're writing for,

this sentence identifies the particular audience. Without it, the reader would not know which audience is being referred to.

"the day we found the sharks' teeth" i would say highlight the element of the plot as it sets its boundaries and centers the adventures of them being on a boat and cleaning spit of sand.

gurl whut are you saying lol