Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ — decoded step-by-step.
Solve it the standard way once — then learn the shortcut.
Q · Internal Structure of The EarthMedium · 45s
Which is the correct order from surface to center?
TopicInternal Structure of The Earth
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained — no skipped algebra.
This is the correct arrangement.
Final Answer: Option A — Crust → Mantle → Outer core → Inner core