Her whining gave me a constant headache?!?
A word that fills in the blank well is sarcastic Sarcasm is a type of irony, called verbal irony, that makes statements about a character that are obviously not true, and are included to add humor to the novel.
Its a metaphor :) the kids room is being compared to the disaster area to make the point that it is messy
Sibling rivalry is the jealousy, competition and fighting between siblings.
The man fails to consider the possibilities of what might go wrong. He fails to form a connection with nature or even with his dog who is trying to tell him to stop. The man simply sees his destination and is determined to get there. The man's lack of imagination puts him out of sync with the elements around him. This causes him to make crucial mistakes as he goes forward. He does not allow the very probable image of him freezing to death develop in his mind