UPSC Prelims PYQ 2009: Earth’s core composition — which element?
In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following?
- Aluminium
- Chromium
- Iron
- Silicon
Explanation
Option (c) is correct
- Earth’s core is composed mainly of iron and nickel (NiFe).
Answer: (c) Iron
