Which one of the following is present in the largest amount in terms of per cent by man In the earth's crust?

A. Silicon

B. Oxygen

C. Carbon

D. Calcium

Answer: Option B

Solution(By Examveda Team)

46.6% Oxygen is the most abundant element in the Earth's crust. Oxygen makes up 467,100 ppm (parts per million) of the Earth's crust, or 46.6%. It exists as a major compound of the silicate minerals where it combines with other elements.