Volcanoes Quiz

What is a volcano?

• A type of mountain that never erupts

• An opening in Earth's crust that erupts when pressure builds up

• A flat landform with no geological activity

• A body of water formed by volcanic activity

Which type of volcano has steep sides and is formed from many layers of volcanic rocks?

• Lava dome volcanoes

• Shield volcanoes

• Composite volcanoes

• Cinder cone volcanoes

What is the most active volcano in the Philippines?

• Mt. Kanlaon

• Mt. Pinatubo

• Mt. Mayon

• Taal Volcano

What is the term for the study of volcanoes?

• Seismology

• Volcanology

• Geology

• Petrology

What happens when magma rises to the surface of a volcano?

• It disappears into the mantle

• It becomes lava and can cause an eruption

• It cools and forms solid rock

• It creates new tectonic plates

What is lahar?

• A type of volcanic ash

• A mudflow or debris flow from a volcano

• A volcanic gas

• A type of lava

How many active volcanoes are currently monitored by PHIVOLCS in the Philippines?

• 10

• 23

• 50

• 100

What is the Pacific Ring of Fire?

• A type of volcanic eruption

• A circle of interconnected fault lines around the Pacific Ocean

• A type of volcanic rock

• A geological formation in the Himalayas

What can volcanic ash do to the environment?

• Make the land infertile

• Increase ocean levels

• Cause respiratory ailments

• Have no effect on the environment

What is the main cause of volcanic eruptions according to the plate tectonic theory?

• The melting of polar ice caps

• The movement of tectonic plates

• The cooling of the Earth's core

• The formation of new continents