Advertisements
Advertisements
प्रश्न
How does the anomalous expansion of water help aquatic organisms in cold climates?
Advertisements
उत्तर १
The anomalous expansion of water helps in the survival of water animals in very cold climates. Initially when the temperature of waterfalls, becomes heavier and sinks down. This process continues till 4°C. Then after this expansion takes place. The surface layer of water gets freezed. Ice being a bad conductor of heat does not allow loss of heat from the water below and results in the survival of water animals.
उत्तर २
When water is cooled it contracts and its density, increases until the temperature reaches 4°C, on further cooling water starts expanding with decrease in its density. This is anomalous phenomenon. The aquatic organisms can live there easily.
APPEARS IN
संबंधित प्रश्न
Give reasons:
Water pipes burst in severe winters.
On what basis and how will you determine whether air is saturated with vapour or not?
Water is cooled from 4 °C to 0 °C. It will :
Explain, why are soft drink bottles not completely filled?
Name the following diagram appropriately.
Observe the given picture and answer the following questions.
- Which property do you understand in this picture?
- What is the temperature of the water at the surface?
- What is the temperature below the layer of ice on the surface?
