Why the igloos were built the way it was?

Igloos were built in a dome shape using compacted snow blocks because this design provides Excellent insulation against the cold, trapping body heat inside while minimizing heat loss. The curved structure also allows snow to slide off easily, preventing accumulation that could collapse the igloo. Additionally, the entrance is often dug lower than the main living area, creating a natural windbreak and further protecting inhabitants from harsh weather conditions. This ingenious construction method reflects the adaptability of indigenous Arctic peoples to their environment.