The three most abundant elements in Earth's crust are
A) rock, water, and tectonics.
B) magnesium, potassium, and oxygen.
C) iron, aluminum, and granite.
D) oxygen, silicon, and aluminum.

Question

Quizplus · Accepted Answer

The three most abundant elements in Earth's crust are oxygen, silicon, and aluminum. Magnesium and potassium are also relatively abundant, but not as much as these three. Iron and aluminum occur in significant amounts but are not as abundant as the top three elements. Granite is not an element, but rather a type of rock made up of various minerals including feldspar, quartz, and mica. Tectonics refer to processes related to the movement and deformation of Earth's crust, not an element. And water is not an element, but rather a compound made up of hydrogen and oxygen atoms.

The Three Most Abundant Elements in Earth's Crust Are