Multiple choice general knowledge

Which is hardest substance in the human body

  1. Palm

  2. Tongue

  3. Teeth

  4. Enamel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Enamel, the outermost layer of teeth, is the hardest substance in the human body. It's even harder than bone and protects the softer dentin and pulp underneath. Note: 'teeth' is not a specific tissue.

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