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The hardest substance available on earth is

A. Gold

B. Iron

C. Diamond

D. Platinum

Answer: Option C

Solution(By Examveda Team)

Diamond is regarded to be the hardest known material in the world.

This Question Belongs to General Knowledge >> General Science

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Comments ( 1 )

  1. NILESH KAKDE
    NILESH KAKDE :
    7 years ago

    DIAMOND IS MADE FROM CARBON.

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