Solved UPSC CDS/OTA Question
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Q · Internal Structure of The Earthmedium · 45s
How deep is the Earth's inner core?
TopicInternal Structure of The Earth
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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The inner core extends from about 5,100 km depth to the Earth's center (approx. 6,371 km). Despite temperatures similar to the Sun's surface, extreme pressure keeps it solid.
Final Answer: Option C - From 5,100 km to center (approx. 6,371 km)