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 Form 2 Geography Exam Questions With Answers

Describe how subsidence can lead to formation of a caldera.

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Answer Text:
Outpouring of Lava forms a volcanic cone
- When the pressure beneath stops, a hollow, void is left beneath
- The weight of the overlying cone leads to collapse of the top of the cone into the how/void beneath
- This leaves a wide depression at the top of the volcano called a caldera