Classification of Volcanoes Quiz

What is the main difference between a volcano and a mountain?

• A volcano is an opening in the Earth's surface that allows magma to escape, while a mountain is a large landform that rises above the surrounding land.

• A volcano is a large landform that rises above the surrounding land, while a mountain is an opening in the Earth's surface.

• A volcano is a type of mountain, while a mountain is a type of volcano.

• A volcano is formed by tectonic plate movements, while a mountain is formed by volcanic eruptions.

Answer explanation

The correct choice highlights that a volcano is an opening in the Earth's surface for magma, while a mountain is a large landform that rises above the surrounding area, clearly distinguishing their definitions.

Which type of volcano is characterized by broad, gently sloping sides and is primarily formed by the eruption of low-viscosity lava?

• Shield volcano

• Composite volcano

• Cinder cone volcano

• Stratovolcano

Answer explanation

A shield volcano is characterized by broad, gently sloping sides and is formed by the eruption of low-viscosity lava, allowing it to flow over great distances. This distinguishes it from other types of volcanoes.

Which type of volcano is known for having steep, conical shapes and is built up by many layers of hardened lava, tephra, pumice, and volcanic ash?

• Shield volcano

• Cinder cone volcano

• Lava dome

• Composite volcano

Answer explanation

A composite volcano, also known as a stratovolcano, is characterized by its steep, conical shape and is formed from multiple layers of hardened lava, tephra, pumice, and volcanic ash, distinguishing it from other types.

Which type of volcano is the smallest and is built from particles and blobs of congealed lava ejected from a single vent?

• Shield volcano

• Composite volcano

• Cinder cone volcano

• Lava dome

Answer explanation

A cinder cone volcano is the smallest type, formed from particles and blobs of congealed lava ejected from a single vent, resulting in a steep, conical shape. This distinguishes it from larger shield and composite volcanoes.

Which type of volcano is formed by the slow eruption of viscous lava that piles up around the vent?

• Lava dome

• Shield volcano

• Composite volcano

• Cinder cone volcano

Answer explanation

A lava dome is formed by the slow eruption of viscous lava that accumulates around the vent, creating a steep, mound-like structure. This distinguishes it from other volcano types, which have different eruption styles.

What do we call a volcano that has erupted recently and is expected to erupt again?

• Dormant volcano

• Extinct volcano

• Active volcano

• Composite volcano

Answer explanation

An active volcano is one that has erupted recently and is expected to erupt again. In contrast, dormant volcanoes are inactive but may erupt in the future, while extinct volcanoes are not expected to erupt again.

What is the term for a volcano that has not erupted in a long time but may erupt again in the future?

• Active volcano

• Extinct volcano

• Dormant volcano

• Shield volcano

Answer explanation

A dormant volcano is one that has not erupted for a long time but has the potential to erupt again in the future. This distinguishes it from active volcanoes, which are currently erupting, and extinct volcanoes, which are unlikely to erupt again.

What do we call a volcano that is not expected to erupt again?

• Active volcano

• Extinct volcano

• Dormant volcano

• Cinder cone volcano

Answer explanation

A volcano that is not expected to erupt again is called an extinct volcano. In contrast, active volcanoes are currently erupting or have erupted recently, while dormant volcanoes have not erupted in a long time but could potentially erupt again.

Which of the following is NOT an active volcano in the Philippines?

• Mayon Volcano

• Taal Volcano

• Mount Pinatubo

• Mount Banahaw

Answer explanation

Mount Banahaw is considered dormant and has not erupted in recent history, unlike Mayon, Taal, and Mount Pinatubo, which are all active volcanoes in the Philippines.

Which of the following is an example of an inactive volcano in the Philippines?

• Mayon Volcano

• Taal Volcano

• Mount Apo

• Mount Pinatubo

Answer explanation

Mount Apo is considered an inactive volcano, while Mayon, Taal, and Mount Pinatubo are active volcanoes. Mount Apo last erupted over 100 years ago, making it the correct choice.