Q.
What is the hardest substance in human body
Asked by sahil arora,
15 Feb '11 11:24 pm
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Answers (7)
1.
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The one which do not breaks off or gets torned off .... very useful and important part in the body kept secret and securely for its purpose and use........!!!
Answered by esuraj, 16 Feb '11 12:22 am
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7.
Naturally bone are hidden, but nails are supposed to be hardest that are apparent.
Answered by Om Shrivastava, 15 Feb '11 11:25 pm
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