Question

Lakes freeze in cold countries in winter, leaving the water underneath at –

Q: Answer-Lakes freeze in cold countries in winter, leaving the water underneath at –

Lake ice cover is seasonal and occurs where average daily temperature is below the freezing point. Once formed the lake ice thickens over the course of the winter as the temperature gets colder. The lakes thermal structure prepares for ice with 0 zero degrees Celsius water at the surface and denser 4 degrees Celsius at the bottom.