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Q40·GS Paper 1 · Prelims 2025

Oxygen Production - Forests vs Oceans

EnvironmentEnvironmental Law & InstitutionsStatement-basedMediumStatic

Question

If a major solar storm (solar flare) reaches the Earth, which of the following are the possible effects on the Earth? Select the correct answer using the code given below:

  1. 1.

    GPS and navigation systems could fail.

  2. 2.

    Tsunamis could occur at equatorial regions.

  3. 3.

    Power grids could be damaged.

  4. 4.

    Intense auroras could occur over much of the Earth.

  5. 5.

    Forest fires could take place over much of the planet.

  6. 6.

    Orbits of the satellites could be disturbed.

  7. 7.

    Shortwave radio communication of the aircraft flying over polar regions could be interrupted.

Options

a

1, 2, 4 and 5 only

b

2, 3, 5, 6 and 7 only

c

1, 3, 4, 6 and 7 only

Answer
d

1, 2, 3, 4, 5, 6 and 7

Explanation

Statements 1, 3, 4, 6, and 7 are correct. Statements 2 and 5 are incorrect.

Solar storms (geomagnetic storms) throw charged particles that violently disrupt the Earth's magnetic field. This cripples electromagnetic and radio infrastructure—like GPS, power grids, satellites, and shortwave communications—and creates intense auroras. However, they do not cause seismic events like tsunamis, nor do they ignite direct physical combustion like global forest fires.

Solar flares disrupt electromagnetic fields and grids; they do not cause physical tectonic shifts or terrestrial fires.

Answer: (c).

Question details

Year

2025

Paper

GS Paper 1

Question

Q40

Subject

Environment

Sub-topic

Environmental Law & Institutions

Type

Statement-based

Difficulty

Medium

Nature

Static

Source hint

Extreme Space Weather Events / NOAA Solar Maximum Warnings 2024

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