The most abundant element in the Earth’s crust is __________?
A. Oxygen
B. Hydrogen
C. Carbon Dioxide
D. Silicon
B. Hydrogen
C. Carbon Dioxide
D. Silicon
Details:
Oxygen is the most abundant element in the Earth's crust, at 461,000 parts per million. This means it makes up roughly 46% of the Earth's crust. Within the universe at large, Oxygen ranks number three in abundance.