Which details from “To Build a Fire” connect to the fact that the Yukon Territory has harsh winters? Check all that apply.

1. “Day had broken cold and gray, exceedingly cold and gray.”
2. “Before it could fall to the snow, the spittle crackled.”
3. “He was bound for the old claim on the left fork of Henderson Creek, where the boys were already.”
4. “He decided to celebrate that event by eating his lunch there.”
5. “The following instant the end of his nose went numb.”
6. “The freezing had too great a start on him, and . . . he would soon be stiff and dead.”