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

ans is________

Vishalraj
25 Feb
332 Answers

332 Answers

- SR
  
  Siva
- 14 Jul
1
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- MI
  
  Mirchandani
- 14 Jul
diamond
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- AM
  
  Amit
- 13 Jul
1
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- BM
  
  Bhanupriya
- 12 Jul
Diamond
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- KS
  
  Kumar
- 12 Jul
diamond
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- MN
  
  Musarrat
- 12 Jul
enamel of tooth
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- Hrishikesh
- 12 Jul
The correct option is 1.
Hardest substance known is Diamond.
Hardest mineral substance in human body is enamel of teeth.
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- EK
  
  Evee
- 22 May
it is diamond tooth enamel is the hardest substance in human body
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- RK
  
  Renu
- 07 May
d
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- SG
  
  Samruddhi
- 06 May
Diamond
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- JB
  
  Jonnawada
- 05 May
diamond
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- SS
  
  Shreya
- 05 May
diamond
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- SK
  
  Sandesh
- 03 May
diamond
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- SC
  
  Sandeep
- 03 May
1
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- MY
  
  Muskan
- 02 May
diamond
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- CE
  
  Christeena
- 01 May
diamond
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- ID
  
  Ishant
- 28 Apr
diamond
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- AS
  
  Arun
- 28 Apr
4
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- NM
  
  Ni
- 28 Apr
diamond
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- RB
  
  Reena
- 21 Apr
1
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