Final answer:
The four bodies of water known to Homer that separate the living from the dead are Acheron, Cocytus, Styx, and Pyriphlegethon.
Step-by-step explanation:
The four bodies of water traditionally held to separate the worlds of the living and the dead, as known to Homer, are the Acheron, Cocytus, Styx, and Pyriphlegethon. These rivers of the underworld were vividly depicted in ancient texts and served as metaphysical boundaries between the realms of the living and the deceased. In various myths, these waterways are manned by Charon, the ferryman of Hades, who transports the souls of the newly deceased across the rivers into the afterlife, provided they have the fare to pay him. The belief in a geographic division between life and death is a common theme in many ancient cultures, extending beyond Greek mythology and reflected in various historical and literary contexts.