What part of Earth's magnetic field is the first line of defense to solar wind particles?
A) radiation belts
B) bow shock
C) magnetosphere
D) Van Allen belts
E) magnetic poles

Question

Quizplus · Accepted Answer

The bow shock is the first line of defense to solar wind particles because it is the boundary between the Earth's magnetic field and the solar wind. The solar wind is a stream of charged particles that is emitted from the Sun. When the solar wind encounters the Earth's magnetic field, it is deflected and compressed. The bow shock is the region where the solar wind is compressed and heated.

What Part of Earth's Magnetic Field Is the First Line