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.
Mount Fuji Map. Mount Fuji. Mount Fuji is the highest mountain in Japan at 3,776.24 m (12,389 ft). An active stratovolcano that last erupted in 1707 C08, Mount Fuji lies about 100 kilometres (60 miles) south-west of Tokyo, and can be seen from there on a clear day.