At several outdoor locations, away from local magnetic objects, a compass settles with its north-seeking end pointing approximately towards geographic north. Which pair of conclusions is consistent with these observations?
Earth has no magnetic field; the region near geographic north behaves like a magnetic south pole.
Earth has no magnetic field; the region near geographic north behaves like a magnetic north pole.
Earth’s core is magnetic; the region near geographic north behaves like a magnetic north pole.
Earth’s core is magnetic; the region near geographic north behaves like a magnetic south pole.