Podcast
Questions and Answers
How do volcanoes primarily form?
How do volcanoes primarily form?
- By magma rising from Earth's mantle to the surface through a conduit (correct)
- Through water erosion
- Through glacial movement
- By the accumulation of sediment
What type of lava has high silica content and leads to explosive eruptions?
What type of lava has high silica content and leads to explosive eruptions?
- Felsic lava (correct)
- Intermediate lava
- Ultramafic lava
- Mafic lava
Where do most volcanoes form along plate boundaries?
Where do most volcanoes form along plate boundaries?
- At convergent boundaries
- At divergent boundaries (correct)
- At transform boundaries
- At subduction zones
What is the main component responsible for forming the foundation of a volcano?
What is the main component responsible for forming the foundation of a volcano?
Which type of lava is characterized by having lower silica content and causing nonexplosive eruptions?
Which type of lava is characterized by having lower silica content and causing nonexplosive eruptions?
What type of lava is produced at convergent boundaries?
What type of lava is produced at convergent boundaries?
Which type of plate convergence results in lower silica content in the lava?
Which type of plate convergence results in lower silica content in the lava?
What geological feature is formed when tectonic plates move over hot spots under oceanic crust?
What geological feature is formed when tectonic plates move over hot spots under oceanic crust?
Where do hot spots originate from?
Where do hot spots originate from?
What is the main reason for explosive eruptions at convergent boundaries?
What is the main reason for explosive eruptions at convergent boundaries?
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