Volcano Related Hazards Quiz

What is a ballistic projectile?

• A type of ash fall

• A form of lava flow

• Rock fragments ejected from a volcano

• A type of volcanic gas

What is the primary danger of ash fall?

• It can increase volcanic gas emissions

• It can cause tsunamis

• It can lead to respiratory problems

• It can create lava flows

What do pyroclastic flows consist of?

• Molten rock and water

• Hot lava blocks, ash, and gases

• Only volcanic gases

• Solid rock fragments

How do lava flows typically move?

• Very quickly

• In a gaseous state

• Slowly

• In a solid state

What is a significant effect of volcanic gases?

• They can cause acid rain

• They only affect animals

• They have no impact on agriculture

• They cool the atmosphere

What triggers a debris avalanche?

• High temperatures

• Earthquake or volcanic eruption

• Lava flow

• Heavy rainfall

What can cause a tsunami during a volcanic event?

• Volcanic gases escaping

• Sudden displacement of water

• Ash fall into the sea

• Lava flow entering the ocean

What is one sign of an impending volcanic eruption?

• Stable ground conditions

• Increase in volcanic quakes

• Increase in vegetation growth

• Decrease in volcanic quakes

What does crater glow indicate?

• Presence of water

• Magma at or near the surface

• Cooling of the volcano

• Absence of volcanic activity

What happens to vegetation as magma rises?

• It flourishes

• It dries up

• It becomes more abundant

• It remains unchanged