Asked by That girl

Which of the following best explains a hardness scale

A scale that tests the hardest of mineral by scratching other material

A scale that test the hardness of a rock by scratching other materials

A scale that tests the hardness of a mineral by being rubbed on other material

A scale that test the hardness of a rock by being rubbed on other materials

Answers

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Answered by GPT 3.5
A scale that tests the hardness of a mineral by being rubbed on other material