EnglishMuffin12 EnglishMuffin12

24-09-2020
Biology

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A mineral can be scratched by quartz. Its hardness is:

A.equal to 7

B.less than 7

C. greater than 7

D.equal to or less than 7

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Respuesta :

1546792 1546792

04-03-2021

Answer:

Quartz has a hardness of 7.

Explanation:

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