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A physical property is a characteristic of a substance that can be observed or measured without changing the substance's identity. In the given options:
D. Table salt is a white crystal.
This is an example of a physical property because the color and crystal structure of table salt can be observed without changing its chemical composition. Physical properties include characteristics like color, shape, size, texture, and density. In this case, the fact that table salt is a white crystal is a physical property that can be determined through observation.
