Explain the relationship between the architectural characteristics of Yakutsk residents and the natural geographical environment.

As can be seen from the four photos, B is an igloo in the Arctic, and the climate in the Arctic is cold. The local Inuit used local materials to build an igloo, which lived with ice cubes and had good thermal insulation function. D is a high-rise residence, which belongs to a dry fence building in the south. Its roof is herringbone, which is convenient for drainage and will not cause water accumulation. The ground floor is generally uninhabited, raising poultry and piling firewood, while the upper floor is where people live. This kind of house has excellent ventilation conditions and is very suitable for hot and humid climate conditions.

So, the answer is: B is the igloo in the North Pole. The climate in the Arctic is cold, and the local Inuit people use local materials to build igloos and live with ice cubes, which has a good thermal insulation function. D is a high-rise residence, which belongs to a dry fence building in the south. Its roof is herringbone, which is convenient for drainage and will not cause water accumulation. The ground floor is generally uninhabited, raising poultry and piling firewood, while the upper floor is where people live. This kind of house has excellent ventilation conditions and is very suitable for hot and humid climate conditions.