Which type of fog would you expect to find in arctic regions?

Ice fog is characteristic of arctic regions due to the extremely low temperatures that prevail in these areas. It forms when the air is saturated with moisture but remains below freezing, leading to the condensation of water vapor directly into tiny ice crystals suspended in the air. This phenomenon often occurs during clear, calm nights when the ground cools rapidly, causing the air near the surface to become chilled as well, resulting in reduced visibility.

In contrast, other types of fog, such as advection fog, typically occur in warmer climates where moist air moves over colder surfaces, leading to condensation. Upslope fog forms when moist air rises up terrain, cooling as it ascends until reaching the dew point. Steam fog results from warm, moist air over colder water bodies. Therefore, the conditions necessary for the formation of ice fog are specifically aligned with the frigid temperatures and atmospheric conditions found in arctic regions, making this the correct choice.