Question : The main mineral constituents of the continental mass are ____ and ____.
Option 1: silica, magnesium
Option 2: silica, alumina
Option 3: oxygen, carbon
Option 4: alumina, magnesium
Correct Answer: silica, alumina
Solution : The correct answer is silica, alumina.
Alumina and silica comprise the bulk of the continental mass's mineral composition. As a result, it is referred to as sial (si-silica and al-alumina). The continental crust is made up of sial. Silica and alumina are referred to as sial. The oceanic crust has a comparable makeup. The terms silica and magnesium are referred to as simas.
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates BrochureYour Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.