Understanding Igloos
Igloos are unique structures traditionally built by the Inuit and other Arctic peoples. Here’s a detailed look at why igloos are typically made from blocks of ice.
Structure of Igloos
- Ice Blocks: Igloos are constructed using large blocks of compacted snow or ice. The snow is cut into blocks and then stacked in a dome shape.
- Insulation: The air trapped in the snow provides excellent insulation, keeping the inside warm even in freezing temperatures.
Functionality
- Warmth: The design allows for effective heat retention. The body heat of the occupants warms the interior, and the igloo’s shape helps to keep this warmth inside.
- Protection: Igloos offer shelter from harsh weather conditions, including wind and snow, making them essential for survival in Arctic environments.
Cultural Significance
- Tradition: Building igloos is a skill passed down through generations among indigenous Arctic communities. It reflects their deep knowledge of the environment and resourcefulness.
- Symbolic: The igloo represents not only a practical solution to cold weather but also cultural identity and heritage for the peoples of the Arctic.
Comparison to Other Options
- Tent: Typically made from fabric, used in warmer climates.
- Hut: Usually constructed from wood or mud, found in various regions around the world.
- Houseboat: A floating home usually made from wood or other materials, designed for living on water.
In summary, igloos (option 'B') are the correct answer as they are specifically made from blocks of ice, serving as an ingenious solution to the challenges posed by cold Arctic environments.

Igloo is a type of shelter made up of suitable snow.