5. Write a short note on igloos.
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Answer:
An igloo is a type of hut built from snow, mainly by Inuits. An igloo has a domed shape and is made of compacted bricks of snow. ... The noun igloo comes from an Inuit word, iglu, which means simply "house," no matter what it's constructed from .Heat transfer sits at the heart of the way igloos work. When a fluid moves it transfers heat via a process called convection. ... Because ice's thermal conductivity is low, like the thermal conductivity of air, an igloo works by stopping heat being transferred into the surroundings, even when the temperature is really low.The igloo, usually made from blocks of snow and dome-shaped, is used only in the area between the Mackenzie River delta and Labrador where, in the summer, Inuit live in sealskin or, more recently, cloth tents .. They were used in winter as temporary shelters by hunters when they were away from their regular homes.
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