Question

. Which sentence uses an essential appositive? After dinner, we had chocolate tarts, my mother’s specialty. Today, if you are willing, we will spend time working in the garden. The tree, the one with the crooked branches, will be cut down tomorrow. The elementary school Munhall has many bright, young teachers.

Answer 1

The elementary school munhall has many bright,young teachers. - Gradpoint

Answer 2

My best answer is the last sentence about the school.  Essential appositives are needed to make the meaning of a sentence clear, and are usually not set off with commas.  If you look at the other choices, these are nonessential, because they are not required to make the sentence clear.  Good luck!