Understanding Calderas

What is the origin of the word 'caldera'?

• It originates from the Spanish word for 'volcano'.

• It comes from the Greek word for 'crater'.

• It is a term used by ancient Egyptians for 'mountain'.

• It is derived from the Latin word for 'cooking pot'.

How is a collapsed caldera formed?

• By the melting of glaciers on a mountain.

• By the gradual erosion of a mountain.

• Through the accumulation of volcanic ash.

• When a large eruption empties magma and the rock above collapses.

Which of the following is a water-filled caldera?

• Grand Canyon

• Mount Everest

• Keela TOA crater lake

• Ngorongoro crater

Where is the Ngorongoro crater located?

• In South America

• In East Africa

• In Southeast Asia

• In North America

What unique feature is found in the middle of the Ngorongoro crater?

• A dense forest

• A desert

• A salt lake with flamingos

• A freshwater lake