Volcanic Eruptions and Activity Classification Quiz
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Volcanic Eruptions and Activity Classification Quiz

Created by
@ElegantFaith

Questions and Answers

What is the main effect of a thick layer of volcanic ash from a huge volcanic eruption?

It can collapse the roofs of buildings due to the weight of the ash.

What is the main advantage of using geothermal energy?

It is a sustainable energy source that can be replenished within a human lifetime.

What is the relationship between elevation and climate?

The higher the elevation, the colder the climate.

What is the main cause of global warming?

<p>Burning of fossil fuels.</p> Signup and view all the answers

Why is Polaris, the North Star, used for navigation?

<p>Polaris is fixed in the northern sky and does not change position.</p> Signup and view all the answers

What is the main effect of the tilt of the Earth's axis?

<p>It causes the change of seasons.</p> Signup and view all the answers

What determines the explosiveness of a volcano's eruption?

<p>Silica content and magma viscosity</p> Signup and view all the answers

How are volcanic belts typically formed?

<p>Along the boundaries of Earth's plates</p> Signup and view all the answers

What triggers the small earthquakes that occur around a volcano before an eruption?

<p>Upward movement of magma</p> Signup and view all the answers

What is a characteristic of Plinian eruptions like that of Mount Pinatubo?

<p>Explosive volcanic eruptions</p> Signup and view all the answers

What geological factor is used to classify volcanoes as active or inactive?

<p>Records of volcanic eruption</p> Signup and view all the answers

What is the molten material inside the Earth ejected during a volcanic eruption called?

<p>Lava</p> Signup and view all the answers

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