Hardest substance known is___________??? 1. Diamond 2. graphite 3. alloy of tin and iron 4. enamel of tooth

ans is________

• Vishalraj
• 12564 Views
• 332 Answers

• 1

  • Siva
  • 14 Jul
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• diamond

  • Mirchandani
  • 14 Jul
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• 1

  • Amit
  • 13 Jul
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• Diamond

  • Bhanupriya
  • 12 Jul
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• diamond

  • Kumar
  • 12 Jul
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• enamel of tooth

  • Musarrat
  • 12 Jul
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• The correct option is 1.br /Hardest substance known is Diamond.br /Hardest mineral substance in human body is enamel of teeth.

  • Hrishikesh
  • 12 Jul
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• it is diamond tooth enamel is the hardest substance in human body

  • Evee
  • 22 May
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• d

  • Renu
  • 07 May
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• Diamond

  • Samruddhi
  • 06 May
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• diamond

  • Jonnawada
  • 05 May
  • 0 Comment

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• diamond

  • Shreya
  • 05 May
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• diamond

  • Sandesh
  • 03 May
  • 0 Comment

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• 1

  • Sandeep
  • 03 May
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• diamond

  • Muskan
  • 02 May
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• diamond

  • Christeena
  • 01 May
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• diamond

  • Ishant
  • 28 Apr
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• 4

  • Arun
  • 28 Apr
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• diamond

  • Ni
  • 28 Apr
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• 1

  • Reena
  • 21 Apr
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