Advertisements
Advertisements
प्रश्न
Give a scientific reason for the following:
In winter the birds fluff up their feathers.
टीपा लिहा
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.
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Why are bridges made of steel girders put on rollers?
State one use of each of the following type of thermometer:
Six's maximum and minimum thermometer.
Explain the three modes of transfer of heat.
Draw a neat and labeled diagram of a vacuum flask (thermos flask). Explain, how it minimizes loss of heat by preventing conduction, convection, and radiation.
Can we fuse an iron wire in a glass rod? Give reason to your answer.
Who designed the first thermometer?
What is absolute zero on the Celsius Scale?
Name the CGS unit of heat. Define it.
Plot a graph taking °C on the Y-axis and the corresponding °F along the X-axis.
The temperature of boiling water is ______.
