Volcanoes and Magma

Description: This quiz aims to assess your knowledge about volcanoes and magma, including their formation, types, hazards, and related concepts.
Number of Questions: 15
Created by:
Tags: volcanoes magma earth science geology
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What is the molten rock beneath the Earth's surface called?

  1. Lava

  2. Magma

  3. Ash

  4. Tephra


Correct Option: B
Explanation:

Magma is the molten rock beneath the Earth's surface that can erupt onto the surface as lava.

Which type of volcano is characterized by a steep-sided cone shape and frequent eruptions?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Caldera


Correct Option: A
Explanation:

Stratovolcanoes are known for their steep-sided cone shape and frequent eruptions.

What is the term for the solidified lava that flows out of a volcano?

  1. Lava

  2. Magma

  3. Ash

  4. Tephra


Correct Option: A
Explanation:

Lava is the term for the solidified molten rock that flows out of a volcano.

Which type of volcano is formed by the accumulation of layers of lava and ash?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Caldera


Correct Option: A
Explanation:

Stratovolcanoes are formed by the accumulation of layers of lava and ash.

What is the term for a large, bowl-shaped depression formed by the collapse of a volcano?

  1. Lava

  2. Magma

  3. Ash

  4. Caldera


Correct Option: D
Explanation:

A caldera is a large, bowl-shaped depression formed by the collapse of a volcano.

Which type of volcano is known for its broad, gently sloping shape and frequent eruptions of low-viscosity lava?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Caldera


Correct Option: B
Explanation:

Shield volcanoes are known for their broad, gently sloping shape and frequent eruptions of low-viscosity lava.

What is the term for the fragments of rock and volcanic material ejected from a volcano during an eruption?

  1. Lava

  2. Magma

  3. Ash

  4. Tephra


Correct Option: D
Explanation:

Tephra is the term for the fragments of rock and volcanic material ejected from a volcano during an eruption.

Which type of volcano is characterized by a steep-sided cone shape and eruptions of cinders and ash?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Caldera


Correct Option: C
Explanation:

Cinder cone volcanoes are characterized by their steep-sided cone shape and eruptions of cinders and ash.

What is the term for the molten rock that erupts from a volcano?

  1. Lava

  2. Magma

  3. Ash

  4. Tephra


Correct Option: A
Explanation:

Lava is the term for the molten rock that erupts from a volcano.

Which type of volcano is formed by the collapse of a volcano's central cone?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Caldera


Correct Option: D
Explanation:

Calderas are formed by the collapse of a volcano's central cone.

What is the term for the process by which magma rises to the Earth's surface?

  1. Eruption

  2. Intrusion

  3. Subduction

  4. Metamorphism


Correct Option: A
Explanation:

Eruption is the term for the process by which magma rises to the Earth's surface.

Which type of volcano is characterized by a large, central crater and frequent eruptions of ash and gas?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Caldera


Correct Option: D
Explanation:

Calderas are characterized by a large, central crater and frequent eruptions of ash and gas.

What is the term for the solidified magma that forms beneath the Earth's surface?

  1. Lava

  2. Magma

  3. Ash

  4. Intrusive Rock


Correct Option: D
Explanation:

Intrusive rock is the term for the solidified magma that forms beneath the Earth's surface.

Which type of volcano is formed by the accumulation of layers of pyroclastic material?

  1. Stratovolcano

  2. Shield Volcano

  3. Cinder Cone Volcano

  4. Pyroclastic Cone


Correct Option: D
Explanation:

Pyroclastic cones are formed by the accumulation of layers of pyroclastic material.

What is the term for the molten rock that cools and solidifies beneath the Earth's surface?

  1. Lava

  2. Magma

  3. Ash

  4. Intrusive Rock


Correct Option: D
Explanation:

Intrusive rock is the term for the molten rock that cools and solidifies beneath the Earth's surface.

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