Arrange the planets in order of increasing strength of their magnetic fields.

The correct order of increasing strength of their magnetic fields is : Venus, Earth, Jupiter.  Probes found that Venus do not have a significant magnetic field. Earth has a Field ration of 2.8 while Jupiter has 4.5.  Jupiter, being the largest planet in our solar system, also has the largest magnetic field, generating a magnetosphere larger than the Sun.

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.