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2016-04-12T21:04:43+05:30
It is because the density of ice is lesser than water.when water starts cooling it starts reducing its density.it is because of the bizzarre property of water
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2016-04-12T21:12:31+05:30
When freezing ice ,molecules of oxygen gets deposited inside the ice crystals and the molecules try to float since air is lite than water.
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