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QuizMultiple Choice

Earth's Magnetosphere — Quiz

Question 2 • Earth and Space Science

Which conclusion best explains how a planet’s magnetic field influences its surface environment?

Answer
A
Magnetic fields are necessary for plate tectonics to begin forming mountains on a planet.
B
Planets with thicker crusts have stronger magnetic fields that cause more tectonic activity.
C
A strong magnetic field helps maintain atmospheric pressure and reduce surface radiation.
D
Mars's tectonic inactivity is caused by its distance from the Sun, not its magnetic field.

Explanation

A planet’s magnetic field deflects many charged particles from the solar wind. This can help limit the loss of atmospheric gases and shield the surface from harmful radiation, supporting a more stable atmosphere and surface environment. The best conclusion is that a strong magnetic field helps maintain atmospheric pressure and reduce surface radiation.

AI-written and checked against the verified answer.

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