10
QuizMultiple Choice

The Sun

Question 10 • 2001310 Earth Science Sem 1 - Pearson

A magnetic field protects Earth from the Sun’s high-energy particles. What two processes are involved in the formation of Earth’s magnetic field?

Answer
A
the movement of materials in Earth’s mantle and Earth’s rotation
B
the movement of metals in Earth’s core and Earth’s rotation
C
the movement of solar wind toward Earth and Earth’s revolution
D
the movement of eruptions from the Sun’s surface and Earth’s revolution

Explanation

Earth’s magnetic field is generated by moving electrically conductive metals, mainly molten iron, in the liquid outer core. Earth’s rotation helps organize that motion, producing the magnetic field. So the two processes are the movement of metals in Earth’s core and Earth’s rotation.

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