Question

What kind of clause is the underlined group of words?

I will head to the soccer field before it closes at sunset.

A.
adjective clause

B.
adverb clause

Answer 1

an adjective clause is a relative clause that modifies a noun or pronoun, so what is the noun in your sentence?

Answer 2

the under lined words are :before it closes at sunset

Answer 3

so is there a noun in that?

Answer 4

Adjective clause: http://www.chompchomp.com/terms/adjectiveclause.htm
Adverb clause: http://www.chompchomp.com/terms/adverbclause.htm