Approximately 90 percent of Earth's magnetic field is generated in the
A)inner core.
B)outer core.
C)lower mantle.
D)upper mantle.
E)aesthenosphere

Question

Quizplus · Accepted Answer

The outer core of Earth is a layer of liquid iron and nickel that undergoes convection, which generates Earth's magnetic field. The inner core is also made of metal, but it is solid and does not undergo convection. The mantle and asthenosphere are made of rock and are not conducive to generating a magnetic field.

Approximately 90 Percent of Earth's Magnetic Field Is Generated in the