Single Ply, Two-Ply and Three-Ply. Ply is how many yarns are twisted together to make a single thread. Fabrics can either be two-ply or single ply. Two-ply means that two yarns are twisted together to make a single thread that is then woven into the fabric. (Note that this is not at all like two-ply toilet paper!).
Stratovolcano. Mt Fuji is the highest mountain in Japan. The mountain has a base diameter of 50 km. Fuji Volcano consists of three volcanoes: Komitake, Ko-Fuji (Older Fuji Volcano) and the present Fuji (Younger Fuji Volcano). A summit crater is 500 m across and 250 m deep.
A sacred mountain captivating people since ancient times. The highest mountain in Japan, Mt. Fuji is 3,776 meters above sea level, and is located more or less in the center of Japan, stretching over Shizuoka and Yamanashi prefectures. Its elegant conical form has frequently been depicted in many paintings and literary works since ancient times.