Solved UPSC CDS/OTA Question
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Q · Internal Structure of The Earthmedium · 45s
What is isostasy?
TopicInternal Structure of The Earth
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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Isostasy is the principle balancing Earth's crustal blocks floating on the denser mantle, explaining elevation differences like mountains and ocean basins.
Final Answer: Option B - Balance of the crust floating on mantle