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UPSC 2025: Consider the following statements: Statement I: Scientific studies suggest that a shift is taking place in the Earth's rotation and axis. Statement II: Solar flares and associated coronal mass ejections bombarded the Earth's outermost atmosphere with tremendous amount of energy. Statement III: As the Earth's polar ice melts, the water tends to move towards the equator. Which one of the following is correct in respect of the above statements?
(a)Both Statement II and Statement III are correct and both of them explain Statement I
(b)Both Statement II and Statement III are correct but only one of them explains Statement I
(c)Only one of the Statements II and III is correct and that explains Statement I
(d)Neither Statement II nor Statement III is correct
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Not attemptedCorrect Answer: (c) Only one of the Statements II and III is correct and that explains Statement I
Scientific studies show that melting polar ice redistributes mass toward the equator, altering Earth’s moment of inertia and shifting its axis—thus Statement III is correct and explains Statement I. Solar flares/CMEs, however, add energy to the magnetosphere but have no measurable effect on Earth’s rotational axis, so Statement II is incorrect. Therefore only one of II or III (namely III) is correct and it explains I. ([livescience.com](https://www.livescience.com/planet-earth/climate-change/north-pole-could-wander-nearly-90-feet-west-by-the-end-of-the-century?utm_source=openai))
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What is the correct answer to this UPSC 2025 Geography question?▼
The correct answer is option (c): Only one of the Statements II and III is correct and that explains Statement I. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Astronomy & Earth–Sun System question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2025, GS Paper 1, as Question 33. It falls under Geography > Astronomy & Earth–Sun System.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Astronomy & Earth–Sun System?▼
UPSC has asked 27 questions from Astronomy & Earth–Sun System (under Geography) across multiple years. Visit the topic page to see the full list and year-wise trends.