I CANT GET IT!! help :(

I Read The Book , Did All the Questions and Tests..Even An Essay ,

I JUST DONNO!

Okay here it is, the Question i just dont understand...

Lord of the flies is a very symbolic novel. Among other symbols, the island represents Planet Earth and the boys represent humanity.With this in mind, and considering what the boys did to the island and to each other, what is the author saying about our treatment of this planet and our treatment of each other?

ughh i would love it if someone new the answer, and if they did little words plz? im kind of a slow learner & reader. lol