Question

Which is the hardest part of human?
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Answer 1

Your teeth contain the hardest substance in the human body — your enamel. Bones aren't quite as hard as enamel, but they rank closely on the hardness scale. Other parts of your body (like muscles, ligaments, and tendons) are incredibly strong, but don't come close to the mineral-based tissue in your teeth and bones.

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Answer 2

The hardest part of human is the tooth enamel.