How is Earth's magnetic field oriented?
A) almost parallel to the rotation axis
B) almost parallel to the equator
C) almost perpendicular to the rotation axis
D) almost perpendicular to the equator
Question 2
In most cases, the distance between the seismically slow upwelling zone and the closest downwelling zone is
A) much greater than the thickness of the convecting mass.
B) much less than the thickness of the convecting mass.
C) about the same as the thickness of the convecting mass.
D) about the same as the thickness of the mantle.
