Discuss the deterioration of the "society" on the island. What circumstances, events, and psychological forces cause this deterioration.

These are pretty big essay questions that are too much for this space. Refer to the GradeSaver theme page and read the "Dehumanization of Relationships". It tracks the gradual deconstruction of their society,

http://www.gradesaver.com/lord-of-the-flies/study-guide/major-themes/