Question

a. What is the role of anomalous

behaviour of water in preserving

aquatic life in regions of cold

climate?
last question then leaving ​

Answer 1

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Role of anomalous behavior of water

☛∙ In cold regions temperature is usually well below 4 o C

☛∙ As temperature decreases, the water at the surface starts contracting.

☛∙ Which results min increase of water density and it sinks to bottom

☛∙ This process continues till the temperature of lake falls to 4 C

☛∙ beyond this point due to cool conditions water starts to cool farther, it starts expanding instead of contracting

☛∙ this results in decreases of density at surface

∙ this results in decreases of density at surface∙ the temperature at surface fall under 0

☛ C which form ICE at the surface.

C which form ICE at the surface.∙ Bat water under the ice is at 4 o C

☛∙ As Ice is bad conductor below the Ice layer.

∙ As Ice is bad conductor below the Ice layer.∙ due to this the aquatic life below the Ice can survive wen in this harsh conditions

Answer 2

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• Anomalous expansion of water refers to water's unusual ability to expand instead of contracting when cooled. ... This layer of Ice acts as an insulation and prevents heat from escaping the water and the cold outside from coming inside the water. Thus, it helps in survival of aquatic animals and fishes