Mercury's magnetic field is thought to be due to:
A)dynamo action, like the Earth's magnetic field.
B)a mechanism entirely unique to Mercury.
C)being close to the Sun.
D)being a fossil remnant dating back to the distant past when the core was more liquid.

Question

Quizplus · Accepted Answer

Mercury's magnetic field is thought to be due to dynamo action, similar to the Earth's magnetic field. This involves the convection and motion of liquid metal in the planet's core generating a magnetic field. Mercury's magnetic field is thought to be due to dynamo action, similar to Earth's magnetic field. This is because Mercury has a partially molten metallic core which generates the magnetic field through motion of electrically conducting material.

Mercury's Magnetic Field Is Thought to Be Due To