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The hardest substance available on earth is?

 

 A.    Platinum

 B.    Diamond

 C.    Quartz

 D.    Gold 

Precious Metals Geology Science Management Metals
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Question added by mohamed sabeen , QHSE Manager , Novus catering service
Date Posted: 2017/05/26
Upvote (0) Views (21) Followers (12) Answers (11) Report Question
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Afdaleddin Ali Eid Saou
by Afdaleddin Ali Eid Saou , Interpreter and Translator , US Army

the hardest naturally occurring substance found on Earth is Diamond 

Mohammad Mustahsan Rizvi
by Mohammad Mustahsan Rizvi , Correspondent , Prasar Bharati, Doordarshan

The hardest substance is b. Diamond

VISHAK J
by VISHAK J , Associate Geophysicist , FUGRO Survey India

B.Diamond (Alloropes of carbon)

Tariq abbas
by Tariq abbas , Human Resources Assistant , Integrated Regional Support Program (IRSP) Pakistan

the diamond is the hardest 

B. Dimond

Muhammad Arif SYAHRIJAL
by Muhammad Arif SYAHRIJAL , Mine Engineering Manager , Sibelco Asia

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

gaurav jaiswal

B Diamond

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Deleted user

The hardest substance available on earth is option B. Diamond

Rana Muhammad Adnan Akbar
by Rana Muhammad Adnan Akbar , Assistant Manager Facilities , EFS Facilities Services

C. Quartz is my guess on this question

Saif Abdulrahman
by Saif Abdulrahman , equipment manager , AWI

D. Gold is the incorrect hard substance on earth ...

Noman Hafeez

Diamond is hardest substance on earth.

Mohamed Wassim Hamrouni

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

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