Question

What is the role of anomalous behavior of water in preserving aquatic life in regions of cold climate?

Answer 1

Role of anomalous behavior of water

$\bullet$ In cold regions temperature is usually well below $4^{o}C$

$\bullet$ As temperature decreases, the water at the surface starts contracting.

$\bullet$ Which results min increase of water density and it sinks to bottom

$\bullet$ This process continues till the temperature of lake falls to $4^{o}C$

$\bullet$ beyond this point due to cool conditions water starts to cool farther, it starts expanding instead of contracting

$\bullet$ this results in decreases of density at surface

$\bullet$ the temperature at surface fall under $0^{o}C$ which form ICE at the surface.

$\bullet$ Bat water under the ice is at $4^{o}C$

$\bullet$ As Ice is bad conductor below the Ice layer.

$\bullet$ due to this the aquatic life below the Ice can survive wen in this harsh conditions.