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Q34·GS Paper 1 · Prelims 2025

Article 6 of Paris Agreement

EnvironmentClimate Change & NegotiationsAssertion-ReasonHardCurrent-affairs-linked

Question

Which one of the following statements best reflects the idea behind the "Fractional Orbital Bombardment System" often talked about in media?

Options

a

A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.

b

A spacecraft lands on another planet after making several orbital motions.

c

A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

Answer
d

A spacecraft moves along a comet with the same speed and places a probe on its surface.

Explanation

The Fractional Orbital Bombardment System (FOBS) is a space-based military capability.

It involves launching a nuclear warhead into a low Earth orbit, traversing a fraction of the orbit, and then rapidly de-orbiting it to strike a target. This evades traditional early-warning radar systems that look for the arched trajectory of standard ballistic missiles.

FOBS places a weapon in partial orbit before striking, bypassing standard terrestrial radar horizons.

Answer: (c).

Question details

Year

2025

Paper

GS Paper 1

Question

Q34

Subject

Environment

Sub-topic

Climate Change & Negotiations

Type

Assertion-Reason

Difficulty

Hard

Nature

Current-affairs-linked

Source hint

Hypersonic Fractional Orbital Bombardment Missile Tests

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