Why Volcanoes Erupt (OCR GCSE Geography B (Geography for Enquiring Minds)): Quizzes
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Practise the questions
10 questions from this quiz
At which type of plate boundary do shield volcanoes form?
At which type of plate boundary do shield volcanoes form?
Constructive plate boundaries
What are hotspots in relation to volcanic activity?
What are hotspots in relation to volcanic activity?
Locations where magma plumes rise up
How would you describe the lava from shield volcanoes?
How would you describe the lava from shield volcanoes?
Runny with low viscosity
What shape do shield volcanoes typically have?
What shape do shield volcanoes typically have?
Broad base with gently sloping sides
At which plate boundary do composite volcanoes form?
At which plate boundary do composite volcanoes form?
Destructive plate boundaries
What happens during subduction at destructive boundaries?
What happens during subduction at destructive boundaries?
One plate is forced beneath another
What characteristic describes composite volcano magma?
What characteristic describes composite volcano magma?
Viscous and containing trapped gases
How do composite volcanoes typically erupt?
How do composite volcanoes typically erupt?
Explosively and violently
What are lahars in volcanic eruptions?
What are lahars in volcanic eruptions?
Volcanic mudflows
Why are composite volcanoes also called stratovolcanoes?
Why are composite volcanoes also called stratovolcanoes?
They have alternating layers of ash/lava