Answer:
1. The sky growled angrily at me- Personification.
The sky has been given human qualities. The sky is behaving like a human being in anger.
2
. I was an icicle waiting at the bus stop- Metaphor. Here, the sentence does not use the word 'like' to compare the speaker to an icicle, but plainly states that the speaker was an icicle himself. This is an example of a metaphor.
3. The wind ruffled my hair like a gentle hand- Simile. Here, the manner in which the wind ruffled the speaker's hair is compared to the manner in which a hand gently ruffles the hair. The word 'like' indicates that it is a simile.
4. The student had a ton of homework- Hyperbole. This is clearly an exaggerated expression to show that the student had a lot of homework. A ton is equal to a hundred kgs. It is not possible for anyone to have such a large amount of homework. Thus, it is clearly an exaggeration and hence, a hyperbole.
Explanation: