Answer: 1) jacks protests to Ralph being chief
2) Jacks lack of interest of helping Ralph
3) The glasses symbolize the usage of fire, which will grant them their rescue which the deeply desired
4) To show that he has calmed down
5) His arrogance masks his fear
Explanation: for 1 & 2, this is a great usage of foreshadowing their disagreements and arguments throughout the book. 3), the fire created by the glasses helps them become rescued, they wished to rescued and tried to what the could to survive. 4) this is a show of emotion, the coolness is how symbolism is used to indicate he himself has finally calmed down. 5) Jack uses his anger and arrogance to hide his real emotion he comes off as stubborn and mean, but in reality he's just a boy like the rest of them, just as scared as the others, but he wouldn't ever admit that for the sake of his pride.
Hope this is helpful :)
