Answer:
Oxymoron - makes readers pause and think about the contradiction created with two opposing words
Allusion - an author references a famous person to build a connection with the readers
Alliteration - an author uses a series of words that start with the same sound to create a rhythm with the words
Repetition - an author uses the same phrase over and over to emphasize key information
Present
Past
Past
Past
Present
The speaker is talking about the water. During winter, the water enters the cracks and freezes and expands. It breaks the stone and makes cracks and when the water melts the holes are bigger. What he is describing is mechanical weathering which is common in nature.
The process of rewriting for clarity and error correction is called revising. because that is basically what you do when you revise.