Everyday Science
Medium
Question
Which of the following is the hardest substance?
A
Copper
B
Diamond
✓ Official correct answer
C
Iron
D
Silicon
Community credibility
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A
Copper
No member explanations yet for this option.
B
Diamond
No member explanations yet for this option.
C
Iron
No member explanations yet for this option.
D
Silicon
No member explanations yet for this option.
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