Advertisements
Advertisements
प्रश्न
Give reason for Sea water does not freeze at 0°C.
Advertisements
उत्तर
Sea water contains impurities that decrease its freezing point. That is why it does not freeze at 0°C.
APPEARS IN
संबंधित प्रश्न
Water is used as a cooling agent.
How do fishes survive in frozen lakes?
What are hot spots? How can you extract energy from a hot spot, if it does not come in contact with underground water?
What are land and sea breezes? Explain with the help of a labeled diagram.
The following figure shows a metal cylinder, containing boiling water. One half side A is polished and another half, B is painted black. Two thin metal sheets X and Y are painted black and have one rubber stopper fixed with wax on each sheet. These sheets are equidistant from the boiling water (container A, B) as shown in the diagram. What would you expect to happen after a few minutes? Give a reason for your answer.
When the temperature of water decreases below 4 °C it’s volume _______.
In a region with a cold climate the aquatic animals can survive at 4 °C, because _______.
