The hardest substance in human body is

Dentine

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Collagen

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Melanin

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Enamel

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Solution

The correct option is D Enamel
Teeth are the hardest substance in the human body. The enamel on your teeth is the hardest and most highly mineralized substance in your body. It covers the outer layer of each tooth and it is the most visible part of the tooth. The enamel is made up mostly of minerals, primarily hydroxyapatite. So, enamel is the hardest substance in our body compared to dentine, collagen and melanin.
Therefore, the correct answer is option D.

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Similar questions

___ is the hardest substance in our body.

A: Tooth is the hardest part of the human body.

R: Enamel is the hardest material in the human body.

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