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Questions and Answers
What is the main factor that determines the type of volcanic eruption?
What is the main factor that determines the type of volcanic eruption?
- Convection currents in the mantle
- Pressure decrease
- Silica content and viscosity (correct)
- Dissolved gases
What is the characteristic of a lava that cools down quickly and forms a glass-like surface?
What is the characteristic of a lava that cools down quickly and forms a glass-like surface?
- Pumice
- Pyroclastic flow
- Obsidian (correct)
- Volcanic block
What is the shape of Mayon volcano?
What is the shape of Mayon volcano?
- Shield
- Lava dome
- Strato (correct)
- Cinder cone
What is the relationship between viscosity and silica content?
What is the relationship between viscosity and silica content?
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What happens to the pressure as magma rises?
What happens to the pressure as magma rises?
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What is the deadliest component of a volcano?
What is the deadliest component of a volcano?
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What is the characteristic of a volcanic material that forms when lava cools down quickly and creates holes and a rough surface?
What is the characteristic of a volcanic material that forms when lava cools down quickly and creates holes and a rough surface?
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What is the composition of magma?
What is the composition of magma?
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What is the shape of Taal volcano?
What is the shape of Taal volcano?
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What is the process that drives plate tectonics in the Earth's mantle?
What is the process that drives plate tectonics in the Earth's mantle?
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