What is the ratio of an object's mass to its volume?
A) Elasticity
B) Mass
C) Viscosity
D) Density
Answer: D
Explanation: A) Incorrect. Elasticity is an object's tendency to return to its original shape after it has been stretched or compressed.
B) Incorrect. Mass is the amount of matter in a body or object measured by its resistance to a change in motion.
C) Incorrect. Viscosity is the measure of a fluid's resistance to flow.
D) Correct. Density is the ratio of an object's mass to its volume.
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