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Question

Bone is mainly composed of

A
Iron and phosphorus
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B
Sulphur and calcium
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C
Calcium and phosphorus
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D
Calcium and magnesium
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Solution

The correct option is C Calcium and phosphorus
Bone is made mostly of collagen, a protein that is woven into a flexible framework. Bone also contains calcium phosphate and calcium carbonate, minerals that add strength and harden the framework.

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