Why did the Inuit live in igloos?

Answer 1

During the winter months in the arctic there is virtually nothing else to build a shelter out of.

Certain Inuit lived in temporary shelters made from snow in winter (the famous igloo), and during the few months of the year when temperatures were above freezing, they lived in tents made of animal skins, bones and driftwood.

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Answer

The igloo is a temporary shelter used when hunting or traveling.