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Science and Technology - General Knowledge Questions
Major portion of the earth's crust is mainly constituted by
A)
Silicon and Iron
B)
Silicon and Aluminium
C)
Oxygen and Silicon
D)
Oxygen and Iron

Correct Answer :   Oxygen and Silicon

Silicon 28%, aluminum 8.2%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium, 2.0%, and titanium 0.61% also comprise the crust. Given the abundance of oxygen and silicon, the silicates are the most abundant minerals in the earth's crust.

Published On : June 11, 2021
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