The Earth’s crust is mainly composed of:

Practice MCQ for SSC, UPSC, RRB Exams

A. Iron and Nickel A.
B. Magnesium and Potassium B.
C. Carbon and Hydrogen C.
D. Oxygen and Silicon D.

Correct Answer: D সঠিক উত্তর: D

Explanation ব্যাখ্যা

The Earth’s crust is dominated by silicate minerals, making oxygen (~46.6%) and silicon (~27.7%) the most abundant elements.

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