Picture from google.
A volcano is when molten rock reaches the earth's surface. Molten rock, or magma, and volcanic gasses can be released It can cause serious damage to the society and nature. Volcanoes are all around the world creating islands and ruins. There are two types of volcanic eruptions: Nonexplosive and explosive. One type of volcano is a shield volcano. A shield volcano is a volcano that only erupts with lava, and the lava flows slowly and widely. Another volcano is the cinder-cone volcano. This volcano explodes with lava and pyroclastic material. The last volcano is the composite volcano. A composite volcano only spews out pyroclastic material and are usually found in groups.