Question

____ is known as the hardest substance in the human body, making teeth a very good means of identification of even very badly decomposed bodies.

○ enamel
○ dentin
○ bone
○ hair

Explanation:

To solve this, we recall the properties of each option:

• Enamel: It is the outermost layer of teeth and is the hardest substance in the human body.
• Dentin: It is beneath enamel and not as hard as enamel.
• Bone: While hard, it is not the hardest in the human body.
• Hair: It is not a hard substance like enamel.

So the correct option is the one related to the hardest substance in teeth, which is enamel.

Answer:

A. enamel