Geography
Answer
| S. No. | Crater | Caldera |
|---|---|---|
| 1. | An abrupt circular depression formed by extrusion of volcanic material. | It is a large, may or may not be a circular depression or basin associated with a volcanic vent. |
| 2. | It is formed by outward explosion of rocks from volcano. | It is formed by inward collapse or subsidence of a volcano. |
| 3. | It is always circular. | It may or may not be as circular as a crater. |