Due to this unique property of water, the lake would not freeze solid.
The anomalous expansion of water is an abnormal property of water in which it expands instead of contracting when the temperature goes from 4 degree Celsius to 0 degree Celsius and it becomes less dense.
Due to this property of water, the aquatic life is protected deep in water in colder region so we can conclude that due to this unique property of water, the lake would not freeze solid.
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