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Home ❭ Questions ❭ Multiple Choice Questions ❭ The hardest substance available on earth is
General Awareness (GA) Competitive Exams (SSC, DSSSB, UPSC, RRB, CET, and State Boards) SSC Combined Graduate Level (SSC CGL)
Ans → (c)Diamond
Explanation →
This question is taken from this post → General Awareness Quiz - attemp/practice
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