Volcanoes

What is the primary cause of a volcanic eruption?

• A. Movement of tectonic plates

• B. Cooling of magma

• C. Increase in pressure within the magma chamber

• D. Increase in atmospheric pressure

What is the term for a volcano that has been dormant for many years but has the potential to erupt again?

• A. Extinct volcano

• B. Active volcano

• C. Dormant volcano

• D. Inactive volcano

According to National Geographics what is the most active volcano in the Philippines?

• A. Mt. Taal

• B. Mt. Pinatubo

• C. Mt. Kanlaon

• D. Mt. Mayon

During a volcanic eruption, stay indoors and

• A. stock food and water in covered containers

• B. cover your nose with damp cloth

• C. remove ash deposits on roofs

• D. None of the above

What is the name of the gas released during a volcanic eruption that is toxic to humans and animals?

• A. Carbon dioxide

• B. Methane

• C. Sulfur dioxide

• D. Oxygen