Which of these observations is not an example of a physical property of matter? a. the density of sea water is measured to be 1.027 g/cm3. b. gold melts at 1064 ºc. c. there are usually at least three different minerals in a piece of granite. d. your mother's best silver tarnishes.

D. Your mother's best silver tarnishes.

Explanation:

Hello,

In this case, the answer is: D. Your mother's best silver tarnishes, since tarnishing is a process carried out due to the effect of an external condition (aging, wearing out and others), not a property. Properties are actually descripted on options A, B and C as they describe the material in terms of its nature.

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it's c (engineer's do their work with mechanical stuff not on any living being)

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explanation:

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