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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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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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Jul 15, 2021
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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
Biology
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Finferflu
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Answer:
Quartz has a hardness of 7.
Step-by-step explanation:
Jehon
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Jul 21, 2021
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Jehon
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