The preposition in question is "on", and its purpose is to show you where the dog chewed. You can remove the preposition to form the sentence "The brown dog chewed the rawhide bone." You can also rearrange it to find the preposition, "on the rawhide bone, the dog chewed" in what is commonly known as the Yoda technique.
Answer:
he wants revenge for the loss of his eye. He is angered by Odysseus tants
I believe that the answer is his body will become a part of the earth, because 'bequeath' means to pass something on or leave to someone else, and he is leaving his body and letting it become one with the earth.