From every hill slope came the trickle of running water, the music of unseen fountains. All things were thawing, bending, snapping. The Yukon was straining to break loose the ice that bound it down... Air-holes formed, fissures sprang and spread apart... And amid all this bursting, rending, throbbing of awakening life, under the blazing sun and through the soft-sighing breezes, like wayfarers to death, staggered the two men, the woman, and the huskies.
The sensory details in this passage best help the reader to imagine
the harsh weather conditions of winter.the hardships of the humans and dogs.the sense of hope that the characters feel.the sights and sounds of early spring.Answer 1: He has a playful and affectionate nature.
The excerpt describes how Thornton plays roughly with Buck's head. He also rests his head upon Buck's, shakes him and calls him names. The description shows someone who is playful towards Buck, and also feels affection towards him.
Answer 2: The sights and sounds of early spring.
Through the imagery of the passage, one can imagine the Yukon transitioning from winter to spring. Some elements that make this obvious are the ice breaking loose, fissures spreading apart, the awakening life and the blazing sun.