What is the main reason for aurora formation in the thermosphere?
Answer and explanation
Correct answer: Interaction of charged solar-wind particles with atmospheric gases
Auroras occur when charged particles carried by the solar wind are guided by Earth’s magnetic field toward the polar upper atmosphere. These energetic particles collide with oxygen and nitrogen atoms, exciting them; when the atoms release that energy, coloured light is emitted. This process is associated mainly with the ionosphere and thermosphere. Therefore option B is correct, while sea waves, raindrops, and stratospheric dust do not produce auroras.
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What is the correct answer to this question?
Interaction of charged solar-wind particles with atmospheric gases
Why is this the correct answer?
Auroras occur when charged particles carried by the solar wind are guided by Earth’s magnetic field toward the polar upper atmosphere. These energetic particles collide with oxygen and nitrogen atoms, exciting them; when the atoms release that energy, coloured light is emitted. This process is associated mainly with the ionosphere and thermosphere. Therefore option B is correct, while sea waves, raindrops, and stratospheric dust do not produce auroras.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting.
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