Advertisements
Advertisements
प्रश्न
Give a scientific reason for the following:
In winter the birds fluff up their feathers.
Advertisements
उत्तर
In winter the birds fluff their feathers in order to trap air in their feathers so that the air provides heat insulation to their body from the surroundings and keeps them warm and saves them from winter.
APPEARS IN
संबंधित प्रश्न
Why does a substance expand on heating?
Out of metals, liquids, and gases:
Which one is worst conductor of heat?
Who am I?
I connect places of equal temperature.
A thermostat is a device which maintains _____.
If the temperature of a liquid in a container is decreased, then the interatomic distance will ______.
State whether true or false. If false, correct the statement.
One Celsius degree is an interval of 1K and zero degree Celsius is 273.15 K.
Heat energy is always transferred from ______ to ______ temperatures.
What is the concept of temperature?
While a substance is undergoing a change of state, the temperature of the body remains ______.
