Since there are 8 syllables in this line, that means that this is a 'tetrameter', meaning 4 meters. 1 meter = 2 syllables. And since the sequence of accents is: first is the stressed syllable followed by an unstressed one, it means it is a 'trochee'. So the answer is 'trochaic tetrameter'.
<span>1. Samantha tried to look impassive when they announced her essay as a finalist in the competition. - impassive means not to show any feelings, so <u>unemotional </u>is the correct answer 2. </span><span>Mr. Bradford lunged at his wedding ring as it fell into the vortex of the bathtub drain. - vortex is when a liquid is rotating around its center, which means that the correct answer is <u>whirlpool</u> 3. </span><span>Sarah’s mother mollified her screaming baby by giving her a teddy bear to hold. - to mollify means to appease, which means that the correct answer is <u>calmed</u> 4. This question is incomplete so I cannot answer it</span>
You didn't italize or mark the phrase, but I see one good candidate:
"The circus animal trainer" is in a way another name given to Mervin, a kind of "renaming" him: this is called an appositive phrase, so if this was the phrase appositive phrase is the answer! (also, I don't see the other phrases here).
