China and Mongolia extend much over most of East Asia's landmass. The other Eastern Asia countries include North Korea, South Korea, Japan, and Taiwan lie on islands or peninsulas. In this there is the Plateau of Tibet averaging about 15,000 feet in elevation. These islands including Japan form a archipelago or a chain of islands and Taiwan off the coast of southeastern China.
A=The Ring of Fire is an area where some movements cause volcanic eruptions and earthquakes. When the volcano expludes it make the soil rich and eazy to fertilize.
