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 : Option (C) - 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
Category : Science and Technology