River and lakes freeze due to temperature fall in many places during the winter season. In India, especially in Jammu and Kashmir, Ladakh and many areas of Himachal Pradesh, river and lakes are fiercely transformed into snow sheets. Now the question is that when the snow freezes, how does the fish live in the frozen ice. Today we will tell you how fish and other aquatic creatures live in water under snow.
River and lake become snow due to temperature falling
You must have seen that when the cold increases and the temperature goes below the minus, then the river and the lake are all settled. But do you also have the question in your mind that when the river and lake settled, then how are the fish alive inside it. Today we will tell you the story behind it.
Not the water under the river freezing?
Please tell that the water under the river and the lake does not freeze. The reason for not freezing the surface water under the river or lake is to be at four degrees of temperature. Because at four degrees centigrade temperatures, the spread of water is the lowest and its density is the highest. At the same time, the reason for the freezing of the upper surface of the lake and the river is an irregular spread of water.
Why is the river water on the top?
Explain that when the temperature of the atmosphere goes below the zero degree of centraigrate during the cold, the temperature of the river or lake starts to cool down. But when the surface temperature is four degrees centigrade, the water sits down due to greater density and pushes the water below the surface. This process lasts until the entire water reaches a temperature of four degrees centigrade. When the temperature of the water starts to decrease below four degrees centigrade, then its density also starts to decrease. Due to which the surface water does not go downwards and it freezes when the zero degree is centered.
How are the fish alive under water
Apart from this, the temperature of the bottom surface water remains four degrees centigrade. At the same time, due to snow freezing on the top surface, she acts as a armor for the lower water. Which does not allow the below heat to come up, due to which the organisms survive even after the snow freezes.
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