Question

In snowy regions which property of water helps to aquatic animals to remaining alive even after the rivers freeze.
A) Fluidity
B) coolant
C) Anomalous behaviour
D) Universal solvent​

Answer 1

Answer:

Fluidity/Universal solvent

Explanation:

Answer 2

Answer:

Option C. Anomalous behavior is the correct option.

Explanation:

• Anomalous expansion or Anomalous behavior of the water helps aquatic animals to remain alive even after the rivers freeze.
• It occurs when the temperature of water falls below or water is cooled from 4 degrees celsius to 0 degrees celsius.
• During this behavior:-

1. The top layer of water starts freezing and falls to 4 degrees celsius, the water obtains maximum density and sinks displacing the lower layers of water and they start coming up.
2. These layers also start cooling to 4 degrees celsius and sink.
3. When the temperature falls below 4 degrees Celsius, the density of heaviness of the water decreases and water stops sinking.
4. Therefore, the surface water freezes at zero degrees celsius and the top layer floats because the lower layers of water remain at 4 degrees celsius.
5. The lower layers trap the oxygen under it, because of this aquatic animals can be found comfortably living in frozen, ponds, lakes, and rivers.