Solved UPSC CDS/OTA Question
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Q · Internal Structure of The Earthmedium · 45s
The Earth's core is primarily composed of which metals?
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 Earth's core mainly consists of iron and nickel. The outer core is in a liquid state, and its convective movements generate Earth's magnetic field. The inner core is solid due to immense pressure despite high temperatures, composed mostly of iron alloy with some nickel. These metals' properties influence geodynamo processes vital to maintaining Earth's magnetosphere.
Final Answer: Option A - Iron and Nickel