The two most abundant elements in Earth's crust are
A)silicates and carbonates.
B)silicon and oxygen.
C)oxygen and aluminum.
D)quartz and feldspar.

Question

Quizplus · Accepted Answer

Silicon and oxygen combined make up about 74% of the Earth's crust, making them the two most abundant elements. Silicates (minerals containing silicon and oxygen) and feldspars (minerals containing aluminum, silicon, and oxygen) are also abundant in the crust, but they are not elements. Carbonates are not abundant in the Earth's crust.

The Two Most Abundant Elements in Earth's Crust Are