Volcanoes 1

At what plate boundaries do you find volcanoes?

• Constructive

• Conservative

• Destructive

• Collision Zone

A volcano is a _______ in the Earth’s crust

What type of volcano is currently or has recently erupted?

• Active

• Dormant

• Extinct

• Composite

What type of volcano is no longer connected to a magma chamber?

• Active

• Dormant

• Extinct

• Shield

What materials can be ejected from volcanic eruptions?

• Lava

• Volcanic bombs (rocks)

• Ash

• Gases

What scale is used to measure the magnitude of volcanic eruptions?

• Volcanic Explosivity Index (VEI)
• Saffir-Simpson Scale
• Moment Magnitude Scale
• Richter Scale

What type of volcano is steep sided and cone shaped?

• Shield volcano

• Composite volcano

What type of volcano mostly ejects runny lava (low viscosity)?

• Shield volcano

• Composite volcano

What is the reason why some volcanoes are not found on plate boundaries?

• Volcanoes only form at the edges of tectonic plates.
• Due to really thin lithosphere

• Some volcanoes are formed by hotspots, hot plumes of magma

• Volcanoes can only erupt when two plates collide.

Which type of volcano is more explosive?

• Shield volcano

• Composite volcano