The most prominent one is assonance since the diphthong /ai/ keeps repeating in night, by, fire, fly, but there is also an alliteration between fire and fly.
The subject, object and complement I guess...
The denotation of a word is the definition that you would find in a dictionary. So, the denotation for voracious is: Consuming or eager to consume great amounts of food. -www.thefreedictionary.com-
Answer:
It is harmful because it has a very strong smell that could mess with your breathing
Explanation: