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 aur

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Q: 40 (IAS/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 :

question_subject: 

Geography

question_exam: 

IAS

stats: 

0,139,129,19,12,139,98

keywords: 

{'major solar storm': [0, 0, 0, 1], 'solar flare': [0, 0, 0, 1], 'earth': [0, 1, 1, 1], 'intense auroras': [0, 0, 0, 1], 'satellites': [0, 1, 0, 0], 'shortwave radio communication': [0, 0, 0, 1], 'tsunamis': [1, 0, 1, 2], 'equatorial regions': [0, 0, 0, 1], 'polar regions': [1, 0, 0, 0], 'planet': [4, 0, 1, 1], 'orbits': [1, 2, 1, 1], 'power grids': [0, 0, 0, 2], 'forest fires': [2, 0, 0, 1], 'effects': [0, 0, 3, 3], 'aircraft': [1, 0, 5, 6]}

  1. If a major solar storm (solar flare) reaches the Earth, the possible effects on the Earth could include: 3. Power grids could be damaged due to the induced electric currents in power lines, transformers, and other electrical equipment.

  2. Intense auroras could occur over much of the Earth as charged particles from the solar storm collide with the Earth's atmosphere.
  3. Orbits of the satellites could be disturbed due to the increased drag caused by the Earth's expanded atmosphere.
  4. Shortwave radio communication of the aircraft flying over polar regions could be interrupted due to the ionization of the atmosphere.

 

Preparing for Future Exams: Learning from the Analysis of Past Questions

Topics:

  1. Solar storms and their effects on Earth
  2. Space weather
  3. Electromagnetic radiation
  4. Effects of electromagnetic radiation on Earth's environment
  5. Sun-Earth connection
  6. Geomagnetic storms
  7. Impacts of solar flares on technology and infrastructure

Sources:

  1. NASA: https://www.nasa.gov/mission_pages/sunearth/spaceweather/
  2. NOAA: https://www.swpc.noaa.gov/
  3. Spaceweather.com
  4. National Geographic
  5. Scientific American

NCERT and reference book chapters:

  1. NCERT Class 12 Physics, Chapter 8: Electromagnetic Waves
  2. NCERT Class 12 Physics, Chapter 13: Nuclei
  3. NCERT Class 12 Geography, Chapter 8: Contemporary India - II

Related concepts:

  1. Solar flares
  2. Coronal mass ejections (CMEs)
  3. Magnetosphere
  4. Ionosphere
  5. Aurora borealis and aurora australis
  6. Radio blackouts
  7. Magnetic storms
  8. Solar wind
  9. Satellite communication
  10. Ground-based infrastructure and technology.