Multiple choice general knowledge science & technology

What is the main component of bones and teeth?

  1. Calcium carbonate

  2. Calcium phosphate

  3. Calcium sulphate

  4. Calcium nitrate
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bones and teeth are primarily composed of calcium phosphate in the form of hydroxyapatite. This mineral compound provides structural rigidity, unlike calcium carbonate (shells), calcium sulfate, or calcium nitrate.

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