3. Why do you think Chris has an infatuation with hunger?
Into the wild by Jon krakauer

Chris has an infatuation with hunger as he was very much concerned about the hunger in America.

Explanation:

Into the Wild is a novel written by John Krakauer about the life of Chris McCandless. Chris McCandless was a young man who left his home only to be found dead two years later in the woods. Chris died of starvation, as reported after his death.

The novel also draws considerable attention to Chris's infatuation with hunger. Chris has been concerned about the hunger prevailing on the streets of America. He was so much infatuated with helping the hungry that he donated $24,000 to the OXFAM organization. Once he gave shelter to a needy in the trailer. He would buy and give hamburgers to the homeless in Washington D.C.

its repetition emphasizing that the chain is his own. sorry if i am wrong.

greet them:

buenas noches.

that is considered night time which is when "good night" is used.