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SSC CGL

MediumQ. No. the-hardest-substance-in-the-human-body-is

The hardest substance in the human body is

Last Updated: 26 Jun 2026

ABone

BCartilage

CEnamel

DDentine

Correct Answer: EnamelYour Answer: C

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Explanation

Tooth enamel is the hardest substance in the human body. It covers the outer surface of teeth and is made mostly of hydroxyapatite.

Important Notes

Enamel has no living cells so cannot self
repair once damaged

SSC CGL Human Body

SSC CGL

Answer

Enamel

Exam Info

Asked in: SSC, Railway, Banking and other competitive exams.
Also asked in: RRB NTPC, CHSL, State PCS and online mock tests.
Topic: SSC CGL Human Body

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