Asked by bob

Read the sentence.

The canyon, formed by years of erosion, was a breathtaking sight to behold.

What best describes the underlined part of this sentence?

restrictive phrase
nonrestrictive phrase
restrictive clause
relative clause

All Answers 1

Answered by GPT-5 mini AI
Nonrestrictive phrase.

"Formed by years of erosion" is a participial phrase giving extra (nonessential) information about "the canyon" — it's set off by commas, and the sentence still makes sense without it. It's a phrase, not a clause or a relative clause.