X is a physical quantity that decreases with the use of any lubricants between two surfaces. What does X represent?

X is a physical quantity that decreases with the use of any lubricants

1.	X is a physical quantity that decreases with the use of any lubricants between two surfaces. What does X represent?
A.	Temperature
B.	Pressure
C.	vermi composting
D.	Density
Answer» D. Density

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X is a physical quantity that decreases with the use of any lubricants between two surfaces. What does X represent?

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