Geochemistry Interview Question:

Tell me what is the earth made of?

Submitted by: Muhammad

The overall composition of the Earth, in terms of elemental composition is as follows:
☛ Iron 34.6%
☛ Oxygen 29.5%
☛ Silicon 15.2%
☛ Magnesium 12.7%
☛ Nickel 2.4%
☛ Sulphur 1.9%
☛ All others: 3.7%
Submitted by: Muhammad