Here are the answers to your questions:
Question 1: What is the term for a group of lines in a poem that form a unit?
Answer: B. Stanza
Question 2: Which of these is an example of onomatopoeia?
Answer: B. Buzz
Question 3: What is the rhyme scheme of the following poem:
The sun sets low, a golden hue,
Painting the sky in shades of blue,
A gentle breeze whispers through the trees,
As twilight softly brings its ease.
Answer: B. ABAB
Question 4: Choose the poem that uses onomatopoeia:
Answer: A) Chariots rumbling; horses neighing; Soldiers shouting martial cries; Drums are sounding; trumpets braying; Seas of glittering spears arise.
Question 5: Choose the poem that uses alliteration:
Answer: B) Snug in my easy chair I stirred the fire to the flame. Fantastically fair The flickering fancies came.
Let me know if you need any more help!