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General Knowledge Quiz: Geography, Science, and Current Affairs
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What is the main component of bones and teeth?
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A
Calcium Phosphate
💡 Explanation:
Bones and teeth are primarily composed of calcium phosphate in the form of hydroxyapatite crystals, which provide hardness and rigidity. This mineral component is embedded in a collagen protein matrix that gives flexibility. Calcium carbonate (A) is found in eggshells and seashells, calcium sulfate (C) in plaster, and calcium nitrate (D) is a fertilizer.