Question

What are two main elements that constitute crust of Earth.

Answer 1

Hlo friend, According to me the answer is,  Silicon ,magnesium,and aluminium

Answer 2

Answer:

The two main elements which constitute the earth Crust are Oxygen, silicon, and aluminum .

Explanation:

Oxygen is found in the form of various oxides and hydrates and is 46.6% of earth’s crust. Silicon and aluminum are found as 27.7% and 8.1% respectively.

Oxygen exists in the form of oxides of silicon and iron in the crust, while silicon and aluminum are found in the form of ores called silicate ores(namely silica sand, quartz, and silica)  and bauxite respectively.