Answer:
1. is comparing summer to sleep
2. is comparing and avalanche to the books
3. is comparing sheep to clouds
The purpose of this piece of text is to inform the reader. I reckon that the source is from the Declaration Of Independence.
A. because, as a result, therefore
The answer is Dante Alighieri, and it was written in 1320, and consists of three parts: Hell, Purgatory, and Heaven.
Is there a story or article where this is used in? If not then I'd say hyperbole. "Ice storm of glass" is heavily exaggerated.