Which property of water contributes most to the ability of fish in lakes to survive very cold winters?

Question

Quizplus · Accepted Answer

The density of water is highest at 4°C, so when lakes freeze, the top layer of water becomes less dense as it cools further and freezes, creating a layer of ice on the surface. This layer acts as an insulating blanket, allowing the water beneath to remain liquid, which is crucial for the survival of fish in the lake. Water's density difference at different temperatures is what allows for this to happen.

Which Property of Water Contributes Most to the Ability of Fish