Solved UPSC CDS/OTA Question
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Q · The Universe medium · 45s
What phenomenon causes the aurora borealis?
TopicThe Universe
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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Aurora borealis is caused by charged solar particles interacting with Earth's magnetic field and atmosphere near the poles.
Final Answer: Option A - Solar particles interacting with Earth's atmosphere