UPSC 2009 › Geography › Physical Geography & Geomorphology
1 question · 2009 · answers as per the UPSC key
UPSC 2009 · Q35 · Geography › Physical Geography & Geomorphology · Save
In the structure of planet Earth, below the mantle, the core is mainly made up of which one of the following ?
(a) Aluminium
(b) Chromium
(c) Iron
(d) Silicon
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Answer: (c) Iron