Which of the following statements is true about Earth's magnetosphere?
1. It shields Earth from solar wind.
2. It is generated by the motion of liquid iron in the inner core.
3. Magnetic storms and auroras are linked to the magnetosphere.

Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 1 and 3 only
(c) 1, 2, and 3
(d) 2 and 3 only

Question

Which of the following statements is true about Earth's magnetosphere?
1. It shields Earth from solar wind.
2. It is generated by the motion of liquid iron in the inner core.
3. Magnetic storms and auroras are linked to the magnetosphere.

Select the correct answer using the code given below:
(a) 1 and 2 only
(b) 1 and 3 only
(c) 1, 2, and 3
(d) 2 and 3 only

ONLiNE UPSC · Accepted Answer

Statement 1 is correct: The magnetosphere acts as a shield, deflecting most of the charged particles from the Sun (solar wind) that would otherwise bombard Earth.

Statement 2 is not correct: The Earth's magnetic field is generated by the motion of liquid iron in the outer core, not the inner core. The inner core is solid.

Statement 3 is correct: Magnetic storms and auroras (like the Northern and Southern Lights) are both phenomena that occur due to interactions between the Earth's magnetic field and charged particles from the Sun.

Earth's Magnetosphere

Characteristics and Effects

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M Question 1	⏱ 0
Which of the following statements is true about Earth's magnetosphere? 1. It shields Earth from solar wind. 2. It is generated by the motion of liquid iron in the inner core. 3. Magnetic storms and auroras are linked to the magnetosphere. Select the correct answer using the code given below: (a) 1 and 2 only (b) 1 and 3 only (c) 1, 2, and 3 (d) 2 and 3 only