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Questions and Answers
What is the primary reason for an explosive eruption?
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?
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'?
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?
What is a characteristic of a fissure or quiet eruption?
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Which of the following is NOT a characteristic of an inactive volcano?
Which of the following is NOT a characteristic of an inactive volcano?
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What is the primary cause of volcanic activity?
What is the primary cause of volcanic activity?
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Which type of volcano is characterized by a steep, conical shape made of pyroclastic material?
Which type of volcano is characterized by a steep, conical shape made of pyroclastic material?
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What distinguishes a composite volcano from other types?
What distinguishes a composite volcano from other types?
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Which type of volcano is built primarily from fluid lava flows?
Which type of volcano is built primarily from fluid lava flows?
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Where are volcanoes commonly found?
Where are volcanoes commonly found?
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