Why are silicate rocks the most common on Earth?
A) The most common minerals are silicates.
B) Iron, oxygen, silicon and magnesium make up 91.2% of the Earth's mass.
C) Oxygen, silicon, iron, and hydrogen make up 91.2% of the Earth's mass.
D) Both a and b are correct.
E) Both a and c are correct.

Question

Quizplus · Accepted Answer

Silicate minerals are the most abundant on Earth because they are composed of silicon and oxygen, which are two of the most abundant elements in the Earth's crust. Additionally, iron, oxygen, silicon, and magnesium are major components of the Earth's mass, supporting the prevalence of silicate rocks.

Why Are Silicate Rocks the Most Common on Earth