The hardest substance present in the human bo | vedclass

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(C) The correct answer is $C$. Hardness of biological substances depends upon the concentration of inorganic salts present in them. Tooth enamel is th

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Tooth-Enamel

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(C) The correct answer is $C$. Hardness of biological substances depends upon the concentration of inorganic salts present in them. Tooth enamel is the hardest substance in the human body because it contains approximately $93\%$ inorganic salts,primarily hydroxyapatite,which provides exceptional durability and resistance to wear.

Column $I$ (Part of the alimentary canal)	Column $II$ (Length)
$i$. Duodenum	$b$. $26 \ cm$
$ii$. Jejunum	$c$. $2.5 \ m$
$iii$. Ileum	$d$. $3.5 \ m$
$iv$. Large intestine	$a$. $1.5 \ m$

The hardest substance present in the human body is:

Similar Questions

Match the Column $I$ with Column $II$,with reference to human beings:
Column $I$ (Part of the alimentary canal) Column $II$ (Length)
$i$. Duodenum $b$. $26 \ cm$
$ii$. Jejunum $c$. $2.5 \ m$
$iii$. Ileum $d$. $3.5 \ m$
$iv$. Large intestine $a$. $1.5 \ m$

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