Cork floats in water because the density of cork is the density of water.

equal to

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greater than

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less than

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Solution

The correct option is C less than
The density of an object determines whether it floats or sinks in another substance.
If the density of an object is less than that of the liquid, then the object would float in that liquid. Otherwise, the object would sink.
Here, as cork is floating in water, we can conclude that the density of cork would be less than the density of water.

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