volcanoes

Three Types of Volcanoes
In the world, there are three types of volcanoes: shield, cinder cone, and composite. Each has special characteristics.
The shield volcano has sides that slope gently and is made entirely of runny lava. It forms from repeated nonexplosive eruptions. Kilauea in Hawaii is an example.
The cinder cone consists entirely of pyroclastic materials and it erodes very quickly. It is often found in clusters. Paricutin in Mexico is an example.
The composite is formed by explosive eruptions that are followed by lava flows, and it has a broad base and steep sides toward the top. It is also known as a stratovolcano. Mt. St. Helens in Washington is an example.