The Earth's magnetic field is generated by
A) convection of hot iron-rich fluid around a solid core.
B) convection of magma in the Earth's mantle.
C) the natural rotation of the Earth.
D) gamma radiation emitted from the Sun.
E) the iron-rich magnetic core.

Question

Quizplus · Accepted Answer

The Earth's magnetic field is primarily generated by the convection of hot, iron-rich fluid in the outer core around a solid inner core. This process, known as the geodynamo, creates electric currents which in turn produce magnetic fields.

The Earth's Magnetic Field Is Generated by