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Types of Volcanoes

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Questions and Answers

What is the primary reason for an explosive eruption?

Fracture or fissure in the earth's surface

Lack of seismic activity in the area

Buildup of gas under viscous, slow-flowing and thick magma (correct)

Rapid release of lava from the volcano

Which of the following is NOT a characteristic of an active volcano?

Reduced size of the volcano (correct)

Hot springs

Regular seismic activities

Acid gases and vapor emission

What type of volcanic eruption is described as a 'glowing avalanche'?

Central or explosive eruption

Pyroclastic flow eruption (correct)

Effusive eruption

Fissure or quiet eruption

What is a characteristic of a fissure or quiet eruption?

Emission of a large amount of lava from a fracture or fissure Signup and view all the answers

Which of the following is NOT a characteristic of an inactive volcano?

Geysers Signup and view all the answers

What is the primary cause of volcanic activity?

Converging or diverging tectonic plates Signup and view all the answers

Which type of volcano is characterized by a steep, conical shape made of pyroclastic material?

Cinder cone volcano Signup and view all the answers

What distinguishes a composite volcano from other types?

It consists of layers of hardened lava, tephra, and ash Signup and view all the answers

Which type of volcano is built primarily from fluid lava flows?

Shield volcano Signup and view all the answers

Where are volcanoes commonly found?

Along tectonic plate boundaries and hotspots Signup and view all the answers