igloo is made of ice. ice is an insulator of heat by itself.
it has a small entry so heat loss by conduction and convection are reduced.
the hemispherical design helps to retain the heat from within and the structure is stable without any props
There is a fire in the igloo that keeps the people living in it warm. The igloo is also made of a few layers of blocs of snow and ice so it can block the wind and cold weather from coming inside.
House
The Sun
Not really. There is a fire in the igloo so it's warm in there.
keeps us warm by maintaining body temperature.
Fats
it doesn't it keeps you cool! <<< i got a cotton sweater. lol It keeps me warm :P
you could build a igloo and that can keep you warm and if you cant build a igloo then put your hand in your arm pits
it keeps us warm and helps plants survive
FIRE
cloths
jumpers