That the Moon has no magnetic field implies that
A)the Moon is spinning too slowly to produce a magnetic field.
B)the interior of the Moon is too hot to produce a magnetic field.
C)the crust of the Moon is so thick that the magnetic field cannot get out of the interior.
D)the Moon's core contains little if any molten iron.
E)the Moon is moving further from Earth.

Question

Quizplus · Accepted Answer

The Earth's magnetic field is generated by the movement of molten iron in its core. The Moon, however, is thought to have a small, solid core, which means there is no molten iron to generate a magnetic field. Therefore, option D is the best choice.

That the Moon Has No Magnetic Field Implies That