Earth’s crust is made up of mostly which two elements?
1 Answer
Mar 27, 2016
The two most abundant elements in the earth's crust are Oxygen and Silicon.
Explanation:
Oxygen is the most abundant element in the Earth's crust. The crust is 46.6% Oxygen by weight.
The second most abundant element is Silicon at 27.7% by weight.
Other elements in decreasing order of abundance are Aluminium, Iron, Calcium, Sodium, Potassium and Magnesium.