The dominant element in oceanic crust are
A) silica and aluminum.
B) silica and magnesium.
C) magnesium and aluminum.
D) potassium and iron.

Question

Quizplus · Accepted Answer

The dominant elements in oceanic crust are silica and magnesium. Silica makes up about 50% of the crust, while magnesium comprises about 20%. Other elements such as iron, aluminum, and potassium are present in trace amounts.

The Dominant Element in Oceanic Crust Are