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posledela
3 years ago
15

I took a screen shot the Q and A is down there

Geography
2 answers:
olganol [36]3 years ago
5 0
The ones that have a higher hardness than the glass. The glass hardness is 5.5 so only the quartz will scratch it with a hardness of 7.
Mama L [17]3 years ago
5 0
The correct answer is c) hope this helps
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