Question

A caldera is a


1. Type of volcano
2. Type of volcanic eruption

3. Very large volcanic bomb

4. Large depression in a volcano

Answer 1

A caldera is : a Large depression in a volcano

Answer 2

Answer:

Option 4, Large depression in a volcano

Explanation:

Caldera is a form of volcanic depression or a basin-shaped crater at volcano top which is formed by a large volcanic eruption and collapse of rock into magma chamber. These two events leave behind a deep underground chamber depression. For example - Yellowstone National Park in USA and Valles Grande in New Mexico are example of Caldera. Sometimes these Calderas have active geothermal system.  

Hence, option 4 is correct