human
What is the difference between a volcano and a caldera?
assistant
A volcano is a type of landform that forms when magma (molten rock) rises from deep within the Earth's crust, usually through a volcanic vent or fissure. The molten rock cools and solidifies as it rises, creating a cone-shaped structure called a volcano. When the eruption stops, the cone collapses to form a crater, or caldera.