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
How does the mantle contribute to plate tectonics?
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.
Slow, convective flow in the mantle drives the movement of tectonic plates on the Earth's surface, causing continental drift, earthquakes, and volcanism.
Final Answer: Option B - By upwelling and convection currents moving tectonic plates