Why does the inside of an igloo stay warmer than the outside air?
- Air pockets in snow insulate
- Snow produces heat itself
- Snow reflects all cold away
- Snow soaks up the wind
Show answer and solution
Correct answer: A. Air pockets in snow insulate
1. Snow holds many tiny air pockets.
2. Trapped air is a poor conductor, so snow acts as an insulator.
3. Snow does not make heat, and it does not reflect cold or soak up wind.
_Source: Wikipedia, Igloo, lead section_