Q261
Which one of the following minerals occurs abundantly in the Earth's crust?
A.
Bauxite
B.
Silica
AnswerC.
Manganese
D.
Iron
Answer: Option B
Solution
Answer: Option B
Solution:
Silica, also called silicon dioxide, compound of the two most abundant elements in Earth's crust, silicon and oxygen, SiO2. The mass of Earth's crust is 59% silica, the main constituent of more than 95% of the known rocks.