According to the figure below,the Earth's magnetic reversals are likely due to ______________.
A) meteorite impacts
B) lightning strikes
C) changes in circulation patterns in the outer core
D) changes in circulation patterns in the inner core

Question

According to the figure below,the Earth's magnetic reversals are likely due to ______________. 
A) meteorite impacts 
B) lightning strikes 
C) changes in circulation patterns in the outer core 
D) changes in circulation patterns in the inner core

Quizplus · Accepted Answer

The figure shows the Earth's magnetic field reversals occurring over millions of years. These reversals are likely due to changes in circulation patterns in the outer core of the Earth, where convection currents of molten iron create the magnetic field. There is no evidence to support the idea that meteorite impacts or lightning strikes play a significant role in magnetic reversals, and the inner core is thought to be too solid to affect the magnetic field in this way.

According to the Figure Below,the Earth's Magnetic Reversals Are Likely