Sawaal
50
Q:

When water freezes its density

A) decreases B) remains constant
C) increases D) become zero

Answer:   A) decreases



Explanation:

When water freezes its density decreases.

Water at ordinary temperatures contracts and increases in density as it is cooled, like most substances. But at about 4°C it reaches a maximum density and then decreases in density as it approaches the freezing point.

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