The hardest substance available on earth is

1 Platinum

2 Coal

3 Diamond

4 Gold

Answers were Sorted based on User's Feedback



The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold..

Answer / rizz

1. Platinum

Is This Answer Correct ?    27 Yes 29 No

The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold..

Answer / angelina

coal

Is This Answer Correct ?    7 Yes 20 No

The hardest substance available on earth is 1 Platinum 2 Coal 3 Diamond 4 Gold..

Answer / guest

(2) Coal

Is This Answer Correct ?    47 Yes 116 No

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