Trending Metals Discussions

The hardest substance available on earth is?‎

   A.    Platinum  B.    Diamond  C.    Quartz  D.    Gold ‎

 

Answer added by  Afdaleddin Ali Eid Saou, Interpreter and Translator, US Army
7 years ago

the hardest naturally occurring substance found on Earth is Diamond 

 

Answer added by  Mohammad Mustahsan Rizvi, Correspondent, Prasar Bharati, Doordarshan
7 years ago

The hardest substance is b. Diamond

 

Answer added by  gaurav jaiswal
3 years ago

B Diamond grgnreiguhnfdkffrfrehfewhficdfnewkc  

 

Answer added by  Mohamed Wassim Hamrouni
7 years ago

The hardest substance on earth is diamond (10 on the Mohs scale)

 

Answer added by  VISHAK J, Associate Geophysicist, FUGRO Survey India
7 years ago

B.Diamond (Alloropes of carbon)

 

Answer added by  Tariq abbas, Human Resources Assistant , Integrated Regional Support Program (IRSP) Pakistan
7 years ago

the diamond is the hardest  B. Dimond

 

Answer added by  Muhammad Arif SYAHRIJAL, Mine Engineering Manager, Sibelco Asia
7 years ago

It is Diamond, Please refer to Moh's scale in General Geology

 

Answer added by  Noman Hafeez
7 years ago

Diamond is hardest substance on earth.

 

Answer added by  Deleted user
7 years ago

The hardest substance available on earth is option B. Diamond