Volcanoes: Types and Characteristics

What determines if a volcano is classified as active?

• The type of lava it produces

• The height of the volcano

• Its location on the Earth's crust

• Its eruption history within the last 10,000 years

Which type of volcano is characterized by gently sloping sides and is formed by runny lava?

• Cinder cone volcano

• Shield volcano

• Caldera

• Composite volcano

What is a common characteristic of the lava from shield volcanoes?

• It is highly explosive

• It is very viscous

• It forms steep slopes

• It is runny and can flow long distances

Where do composite volcanoes typically form?

• In the middle of tectonic plates

• On oceanic ridges

• At constructive plate margins

• At destructive plate margins

What makes stratovolcanoes often very explosive?

• The presence of basaltic lava

• Their height and size

• The acidic nature of their lava

• Their location near the equator