Multiple choice general knowledge

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

Calcium phosphate (hydroxyapatite) is the main mineral component of bones and teeth, providing hardness and strength. While calcium compounds like carbonate, sulphate, and nitrate exist in nature, they are not the primary structural components of skeletal tissue.

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