12 Questions
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?
Burning of fossil fuels.
Why is Polaris, the North Star, used for navigation?
Polaris is fixed in the northern sky and does not change position.
What is the main effect of the tilt of the Earth's axis?
It causes the change of seasons.
What determines the explosiveness of a volcano's eruption?
Silica content and magma viscosity
How are volcanic belts typically formed?
Along the boundaries of Earth's plates
What triggers the small earthquakes that occur around a volcano before an eruption?
Upward movement of magma
What is a characteristic of Plinian eruptions like that of Mount Pinatubo?
Explosive volcanic eruptions
What geological factor is used to classify volcanoes as active or inactive?
Records of volcanic eruption
What is the molten material inside the Earth ejected during a volcanic eruption called?
Lava
Test your knowledge on volcanic eruptions and the classification of volcanic activity. Explore concepts like high silica content, explosive eruptions, active and inactive volcanoes, historical timelines, and composite-classification of volcanoes.
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