Solved UPSC CDS/OTA Question
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Q · Internal Structure of The Earthmedium · 45s
What separates the Earth's crust from the mantle?
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 Mohorovičić discontinuity, or Moho, marks the boundary between the Earth's crust and the underlying mantle. Named after Croatian seismologist Andrija Mohorovičić, it is characterized by a sudden change in seismic wave velocities, indicative of denser mantle material below.
Final Answer: Option A - Moho discontinuity