Which of these materials is considered to be the hardest?
Answer Diamond
Used in everything from drills to wedding rings, diamond is considered to be the hardest material in the world.
Asked by Darrell Rowe · Last updated 5 years ago · 757 views
Used in everything from drills to wedding rings, diamond is considered to be the hardest material in the world.
Asked by Darrell Rowe · Last updated 5 years ago · 757 views
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