12. Which of the following BEST describe caldera?

A. a funnel shape opening at the top of volcano

B. a big opening at the top volcano

C. formed when a part of the wall collapses following an explosive eruption

D. none of the above

CARDERA

- IS A LARGE FORMED WHEN A PART OF THE WALL COLLAPSES FOLLOWING AN EXPLOSIVE ERUPTION

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Answer:

C. formed when a part of the wall collapses following an explosive

Explanation:

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