Andrea111 Andrea111

15-04-2015
Computers and Technology

contestada

Fact or opinion?
diamonds are the hardest substance on earth

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starrynightsky starrynightsky

15-04-2015

They are the hardest mineral. The only thing that can scratch a diamond is another diamond.

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ndejesus1209 ndejesus1209

15-04-2015

It's a fact if you mean natural substance

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