Question

The Mohs scale is used to measure:

streak
cleavage
hardness
luster

Answer 1

Answer:

Hardness.

Step-by-step explanation:

A mineral's hardness is a measure of its relative resistance to scratching, measured by scratching the mineral against another substance of known hardness on the Mohs Hardness Scale.

Answer 2

Answer:

hardness

Step-by-step explanation:

number 3