a. each continent had its own magnetic pole during successive geological periods.
b. that the magnetic poles for each continent had moved over geological time.
c. that the magnetic poles have remained in one location and each of the continents has
moved.
d. that both the poles and the continents have moved over time.
e. none of these
The study of paleomagnetism is possible because:a.
the magnetic minerals in rocks create the Earth's magnetic field.
b. most rocks contain no magnetic minerals.
c. the magnetic minerals in rocks disrupt the Earth's magnetic field.
d. the magnetic minerals in a cooling lava point toward the north magnetic pole.
e. none of these