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70. What is the hardness range of pencils? A. 8B to 8H B. 10F to 10HB C. 10H to 10B D. 10 to 10B
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70. What is the hardness range of pencils?

A. 8B to 8H
B. 10F to 10HB
C. 10H to 10B
D. 10 to 10B

User Andy Refuerzo
by
5.4k points

1 Answer

6 votes

Answer:

between 2 and 3 Mohs

Step-by-step explanation:

those are all wrong

User Dwight Spencer
by
5.4k points
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