In question 1 this is an opion based question you think to youre self about how you feel about theese pepole inthe book
like the paragraph said the quarky and unpredictable pepole are round the boring ones are flar=t take the names that are given and determine if they are round or flat
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.