Tooth enamel is made up of

Practice MCQ for SSC, UPSC, RRB Exams

A. calcium phosphate A.
B. calcium carbonate B.
C. calcium oxide C.
D. potassium D.

Correct Answer: B সঠিক উত্তর: B

Explanation ব্যাখ্যা

Tooth enamel is primarily composed of calcium phosphate, arranged in a crystal structure called hydroxyapatite. This mineral, along with other calcium-based compounds, gives enamel its hardness and durability, making it the hardest substance in the human body.

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