You are on the 4th level of the 15 stages of Mount Fuji. Careful, this is your first chance to be injured on a social challenge avalanche question. This is an avalanche.
Avalanches happen when big patches of snow slide down the side of a mountain.
During the winter season avalanches can occur in different parts of Japan. Mount Fuji is only open to professional hikers in the winter months because no one can know when a life threatening avalanche will occur. B. Hiroshima was the only city ever to have an atomic bomb dropped on it. C. Japan spends less on its' military than it spends on its' education and sciences.