Natural Hazards: Volcanoes

Multiple Choice

Which of the following is most likely to be released during a volcanic eruption, as shown in the images?

• Lava

• Snow

• Sand

• Rain

Multiple Select

Which of the following statements about volcanic eruptions are correct?

• Eruptions can be slow and quiet

• Eruptions can be violently explosive

• Eruptions always destroy the volcano

• Eruptions occur when pressure from gases becomes too great

Multiple Choice

What causes a volcanic eruption to occur?

• Pressure from gases within the magma becomes too great

• The Earth's surface cools rapidly

• Rainwater seeps into the volcano

• Wind erodes the volcano's surface

Fill in the Blank

The molten rock beneath the Earth's surface is called ___.

Multiple Choice

Based on the data from the United States Geological Survey, how does the frequency of volcanic eruptions change as the VEI increases?

• The frequency increases

• The frequency stays the same

• The frequency decreases

• There is no pattern

Multiple Choice

Which of the following statements best describes the global distribution of volcanoes as shown on the world map?

• Volcanoes are evenly distributed across all continents.

• Most volcanoes are located along tectonic plate boundaries.

• Volcanoes are only found on islands.

• Volcanoes are mostly found in the Southern Hemisphere.

Multiple Choice

Which of the following volcanoes are classified as extinct according to the Major Active and Extinct Volcanoes Map?

• Mount Vesuvius

• Mount Kilimanjaro

• Mount St. Helens

• Mount Fuji

Multiple Choice

Why do volcanoes that erupt less often tend to be more explosive?

• Because they have more magma

• Because they are taller

• Because of a build up of gas and pressure inside the volcano

• Because they are closer to the ocean

Multiple Select

Which of the following are possible impacts of volcanic ash?

• It can affect breathing

• It can contaminate water supplies

• It can cause jet engines to fail

• It can increase rainfall

Multiple Select

Which of the following are benefits of volcanoes?

• They produce fertile soil for crops

• They always destroy habitats

• They contribute to Earth's atmosphere

• They can positively affect tourism

Multiple Choice

Mount Tambora's eruption in 1815 caused which of the following global effects?

• A year without a summer

• Creation of a new island

• Major earthquake

• Permanent climate warming

Multiple Select

Which of the following are possible results of volcanic eruptions?

• Formation of calderas

• Destruction of forests

• Creation of fertile soil

• Permanent cooling of Earth