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UPSC 2022: If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth ? 1. GPS and navigation systems could fail. 2. Tsunamis could occur at equatorial regions. 3. Power grids could be damaged. 4. Intense auroras could occur over much of the Earth. 5. Forest fires could take place over much of the planet. 6. Orbits of the satellites could be disturbed. 7. Shortwave radio communication of the aircraft flying over polar regions could be interrupted. Select the correct answer using the code given below :
(a)1, 2, 4 and 5 only
(b)2, 3, 5, 6 and 7 only
(c)1, 3, 4, 6 and 7 only
(d)1, 2, 3, 4, 5, 6 and 7
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Not attemptedCorrect Answer: (c) 1, 3, 4, 6 and 7 only
Major solar storms disrupt the ionosphere and magnetosphere, leading to GPS/navigation failure, geomagnetically-induced currents that damage power grids, widespread auroras, increased atmospheric drag that perturbs satellite orbits, and blackout of HF/short-wave links over polar routes. They do not trigger tsunamis or planet-wide forest fires. Hence statements 1, 3, 4, 6 and 7 only are correct (option c). ([edukemy.com](https://edukemy.com/blog/upsc-prelims-2022-question-40/?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2022 Science & Technology question?▼
The correct answer is option (c): 1, 3, 4, 6 and 7 only. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Space Technology & Astronomy question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2022, GS Paper 1, as Question 40. It falls under Science & Technology > Space Technology & Astronomy.
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 Space Technology & Astronomy?▼
UPSC has asked 69 questions from Space Technology & Astronomy (under Science & Technology) across multiple years. Visit the topic page to see the full list and year-wise trends.