The earth is often struck by solar eruptions of energetic particles hurled from the sun. Which of the following statements reflect their effect on the earth?

1.When these eruptions interact with the magnetic field, they cause beautiful auroras

2.They break down radio communication and power supplies

3.They do not affect life-support systems on the earth

A1 only

B1 and 2 only ✓ Correct

C2 and 3 only

D3 only

Correct answer: (B) 1 and 2 only

Explanation

Solar eruptions both create auroras and disrupt technology, matching Statements 1 and 2.

Statement 1 is correct, as these particles interacting with the earth's magnetic field produce colourful auroras.

Statement 2 is correct, as the same storms can break down radio communication and power supplies.

Statement 3 is wrong, since severe solar storms can indeed disturb life-support and navigation systems.

These bursts of energetic particles are known as solar flares and coronal mass ejections.

The earth's magnetic field otherwise shields most life from this constant particle stream.

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