Set 8B

Front

What is a dormant volcano?

Back

A dormant volcano is an inactive but uneroded volcano that may have occasional deep seismic activity.

Front

What shape are shield volcanoes?

Back

Shield volcanoes are flat and dome-shaped and usually erupt with lava.

Front

What does the Volcanic Explosivity Index (VEI) measure?

Back

The VEI measures the explosiveness of volcanic eruptions on a scale from 1 to 10, with each number being 10 times stronger than the previous one.

Front

What type of volcano usually erupts with pyroclastic material?

Back

Cinder cone volcanoes usually erupt with pyroclastic material.

Front

What is an extinct volcano?

Back

An extinct volcano shows no signs of seismic or volcanic activity and is almost definite not to erupt again.

Front

What is the difference between active and dormant volcanoes?

Back

Active volcanoes are currently erupting or have erupted recently, while dormant volcanoes are inactive but may erupt again in the future.

Front

What are cinder cone volcanoes?

Back

Cinder cone volcanoes are steep, conical hills formed from the accumulation of volcanic debris, typically erupting explosively.

Front

What are the characteristics of stratovolcanoes?

Back

Stratovolcanoes, or composite cones, are characterized by their layered structure of lava flows and ash, and they often have explosive eruptions.

Front

What is the primary material ejected by shield volcanoes?

Back

Shield volcanoes primarily erupt basaltic lava, which is low in viscosity and flows easily.

Front

How does the VEI scale help scientists?

Back

The VEI scale helps scientists categorize the explosiveness of eruptions, aiding in risk assessment and preparedness.