A. It is so harsh that it may cause the protagonist's death.
Explanation:
The setting of Julie of the Wolves was somewhere in Northern Alaska and it was set on open ground in cold harsh weather and this setting is important because It is so harsh that it may cause the protagonist's death
Smokejumpers are wilderness firefighters who jump out of airplanes and parachute into remote areas to fight wildfires. Their job is considered one of the most dangerous in the world. ... He believed the best way to quickly attack remote fires was to fly firefighters to a position near the fire.
Explanation: a tree of life is seen of as a good, hopeful, thing. I think the tree represents the “hope” and the river represents the struggle. I hope that helps!