The magnetic fields of Uranus and Neptune are generated by:
A)the flow of atmospheric (gaseous) methane that has been ionized by solar UV.
B)the flow of electrically conducting molten iron in the core.
C)the bulk flow of liquid metallic hydrogen.
D)electrical currents in water, rendered electrically conducting by ionized molecules such as ammonia.

Question

Quizplus · Accepted Answer

The magnetic fields of Uranus and Neptune are thought to be generated by electrical currents within oceans of water mixed with ionized molecules like ammonia under high pressure, making these substances electrically conductive. This is different from the Earth's magnetic field, which is generated by the flow of molten iron in its core. The unique conditions on Uranus and Neptune lead to this distinct mechanism for magnetic field generation.

The Magnetic Fields of Uranus and Neptune Are Generated By