There is no passage to click on. If you add a link In the comments I can help you out though!
Adjective phrase - from the high school
Noun modified - students
The adjective phrase modifies a noun or pronoun in a sentence. It can be place before or after the noun or pronoun in a sentence.
In the above sentence, the adjective phrase is placed after the noun.
So if they go to college it shows what they did for peer council president on the resume
Yes it is a noun you can also check in a dictionary or search it up!