Using our context clues, the theory of a central fire most likely means:
that the center of the earth was made of fire
that a fire must exist in the center of all thing
that if one is going to build a fire, it should be centrally located
that fire explodes eventually
that the center of the earth was made of fire
that a fire must exist in the center of all thing
that if one is going to build a fire, it should be centrally located
that fire explodes eventually