Volcanoes Facts! Test Your Knowledge! Trivia Quiz

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Volcanoes Facts! Test Your Knowledge! Trivia Quiz - Quiz


A volcano is a unique mountain or a hill with a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have already been propelled from the earth’s crust. This quiz on volcanoes explains what most shield volcanoes have grown from the ocean floor to form, what occurs when the temperature of lava increases, and an example of a composite volcano. This quiz is overflowing with information; give it a shot.


Questions and Answers
  • 1. 

    Most shield volcanoes have grown from the ocean floor to form ______________.

    • A.

      Islands

    • B.

      Dikes

    • C.

      Tectonic plates

    • D.

      Canyons

    Correct Answer
    A. Islands
    Explanation
    Most shield volcanoes have grown from the ocean floor to form islands. This is because shield volcanoes are formed by the eruption of fluid lava, which flows easily and spreads out in all directions. As the lava erupts and cools, it builds up layers upon layers, gradually forming a broad, gently sloping volcano. Over time, the volcano can grow large enough to emerge from the ocean and form an island.

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  • 2. 

    As the temperature of lava increases, ___________.

    • A.

      Its viscosity decreases.

    • B.

      It begins to harden.

    • C.

      Its viscosity increases.

    Correct Answer
    A. Its viscosity decreases.
    Explanation
    As the temperature of lava increases, the viscosity of the lava decreases. This is because high temperatures cause the lava to become more fluid and flow more easily. Conversely, when the temperature decreases, the lava becomes more viscous and begins to harden. Therefore, the correct answer is that as the temperature of lava increases, its viscosity decreases.

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  • 3. 

    Crater Lake in Oregon was produced. when_______________ .

    • A.

      A lava dam blocked a river.

    • B.

      A large explosion blew out the side of a large volcano.

    • C.

      The summit of a volcano collapsed.

    • D.

      A lava flow erupted from a volcano.

    Correct Answer
    C. The summit of a volcano collapsed.
    Explanation
    The correct answer is "the summit of a volcano collapsed." This explanation suggests that Crater Lake in Oregon was formed when the top part or summit of a volcano collapsed. This collapse created a depression or crater that eventually filled with water, forming the lake.

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  • 4. 

    The greatest volume of lava is produced by an  ___________________________  .

    • A.

      Eruption of a cinder cone.

    • B.

      The eruption of a fissure along an ocean ridge or a hot spot.

    • C.

      Eruption of a stato volcano.

    Correct Answer
    B. The eruption of a fissure along an ocean ridge or a hot spot.
    Explanation
    The greatest volume of lava is produced by the eruption of a fissure along an ocean ridge or a hot spot because these types of eruptions involve the release of large amounts of magma from beneath the Earth's surface. Fissure eruptions occur when molten rock escapes through long cracks in the Earth's crust, allowing for a continuous flow of lava. Ocean ridges and hot spots are areas where magma is more likely to rise to the surface, resulting in larger eruptions and greater volumes of lava being released.

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  • 5. 

    Check out this image.   It is a fine example of a volcano's vent....

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    This is a SKYLIGHT

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  • 6. 

    Most of the volcanoes in Hawaii are associated with _____________ volcanoes.  

    • A.

      Intra-plate vulcanism

    • B.

      Hot spots

    • C.

      Shield volcanoes

    Correct Answer
    B. Hot spots
    Explanation
    Most of the volcanoes in Hawaii are associated with hot spots. Hot spots are areas in the Earth's mantle where magma rises to the surface, creating volcanic activity. The Hawaiian Islands were formed by a hot spot located beneath the Pacific Plate. As the plate moves over the stationary hot spot, a chain of volcanoes is formed. Shield volcanoes are commonly found in areas with hot spot activity, so while they are related, the correct answer is hot spots.

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  • 7. 

    Which of the following is NOT a factor affecting how violently or quietly a volcano erupts?

    • A.

      Magma's composition

    • B.

      Magma's temperature

    • C.

      Size of the volcano's cone

    Correct Answer
    C. Size of the volcano's cone
    Explanation
    The size of the volcano's cone does not affect how violently or quietly a volcano erupts. Factors such as magma's composition and temperature play a significant role in determining the explosiveness of a volcanic eruption. The composition of magma determines its viscosity, which affects the ease with which gases can escape. Higher temperature magma tends to be more fluid and can release gases more easily, resulting in a more explosive eruption. However, the size of the volcano's cone does not directly impact these factors and therefore does not affect the violence or quietness of an eruption.

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  • 8. 

    Identify this type of  lava

    • A.

      Pahoehoe

    • B.

      Ah Ah

    • C.

      Crater

    Correct Answer
    B. Ah Ah
  • 9. 

    Identify this Instrusive igneous formation.   It is MOST likely a ____________________.

    • A.

      Lava plateu

    • B.

      Batholith

    • C.

      Sill

    Correct Answer
    A. Lava plateu
    Explanation
    Based on the given options, the most likely intrusive igneous formation is a batholith. A batholith is a large mass of intrusive igneous rock that forms deep beneath the Earth's surface. It is often composed of coarse-grained rocks, such as granite, and is associated with the formation of mountain ranges. A lava plateau, on the other hand, is an extrusive igneous formation that results from the eruption of large volumes of basaltic lava onto the Earth's surface. A sill is a tabular intrusion of magma that is parallel to the surrounding rock layers. Therefore, the correct answer is a batholith.

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  • 10. 

    This is an example of a shield volcano.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    This statement is true because a shield volcano is a type of volcano that has a broad, gently sloping cone shape, resembling a warrior's shield. These volcanoes are formed by repeated eruptions of fluid lava that flows easily and spreads out over a large area, creating a wide, low-profile volcano. Shield volcanoes are typically found in areas with hot spots or along mid-ocean ridges. Some famous examples of shield volcanoes include Mauna Loa in Hawaii and the Galapagos Islands.

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  • 11. 

    Identify this Instrusive igneous formation.   It is MOST likely a ____________________.

    • A.

      Lava plateu

    • B.

      Batholith

    • C.

      Sill

    Correct Answer
    A. Lava plateu
    Explanation
    The given intrusive igneous formation is most likely a lava plateau. A lava plateau is formed when large amounts of lava flow out of fissures in the Earth's crust and spread over a wide area. The lava cools and solidifies, creating a flat and extensive plateau-like landform. This type of formation is commonly found in volcanic regions and is characterized by its horizontal layers of solidified lava. A batholith, on the other hand, is a large mass of intrusive igneous rock that forms deep beneath the Earth's surface. A sill is a horizontal sheet-like intrusion of magma between layers of existing rock.

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  • 12. 

    The Devils Tower in the Black Hills of Wyoming would be considered a geological wonder and a National Park has been formed. Choose the answer below that BEST to describe this Igneous Activity.

    • A.

      A very large batholith

    • B.

      The core of an extinct volcano that has been exposed by erosion

    • C.

      The remains of a shield volcano

    Correct Answer
    B. The core of an extinct volcano that has been exposed by erosion
    Explanation
    The Devils Tower in the Black Hills of Wyoming is considered a geological wonder and a National Park because it is the core of an extinct volcano that has been exposed by erosion. Erosion has gradually worn away the surrounding rock, leaving behind the solidified magma chamber of the volcano. This unique formation attracts visitors and scientists alike, making it a significant geological feature.

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  • 13. 

    Which of the following is an example of a Composite Volcano?

    • A.

      Kilauea in Hawaii

    • B.

      Mount Ranier

    • C.

      Paricutin in Mexicao

    Correct Answer
    B. Mount Ranier
    Explanation
    Mount Ranier is an example of a Composite Volcano because it is a tall and conical volcano formed by alternating layers of lava flows and pyroclastic materials such as ash, pumice, and volcanic rocks. Composite volcanoes are characterized by their steep slopes and explosive eruptions. Kilauea in Hawaii is a shield volcano, which has a low profile and is formed by fluid lava flows. Paricutin in Mexico is a cinder cone volcano, which is small in size and formed by explosive eruptions of ash and cinders.

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  • 14. 

    This caldera is _____________________________ , located in Oregon.

    • A.

      Mt Katmi

    • B.

      Mount Okmok

    • C.

      Crater Lake

    Correct Answer
    C. Crater Lake
    Explanation
    Crater Lake is a caldera located in Oregon.

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  • 15. 

    A volcanic bomb is a ________________________.

    • A.

      Very violent volcanic explosion

    • B.

      Piece of semi-molten rock ejected as glowing lava

    • C.

      Tiny particle of ejected rock less than 64 mm in size

    Correct Answer
    B. Piece of semi-molten rock ejected as glowing lava
    Explanation
    A volcanic bomb refers to a piece of semi-molten rock that is ejected from a volcano during an eruption. These rocks are typically glowing hot and can travel long distances before solidifying. This phenomenon occurs when the volcano releases high-pressure gas and magma, causing the semi-molten rock to be forcefully expelled into the air.

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  • 16. 

    As the temperature of lava increases , ___________________________.

    • A.

      Its viscosity decreases

    • B.

      It begins to harden

    • C.

      Its viscosity increases

    Correct Answer
    A. Its viscosity decreases
    Explanation
    As the temperature of lava increases, its viscosity decreases. This is because higher temperatures cause the particles in the lava to move more freely, resulting in a decrease in the resistance to flow. As a result, the lava becomes less thick and more fluid, allowing it to flow more easily.

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  • 17. 

     Which of the following factors helps determine whether a volcanic eruption will be violent or relatively quiet?

    • A.

      Amount of dissolved gases in the magma.

    • B.

      The temperature of the magma.

    • C.

      Composition of the magma.

    • D.

      All answers are correct.

    Correct Answer
    D. All answers are correct.
    Explanation
    The factors that determine whether a volcanic eruption will be violent or relatively quiet include the amount of dissolved gases in the magma, the temperature of the magma, and the composition of the magma. All of these factors contribute to the overall behavior of the eruption and can influence its intensity.

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  • 18. 

    Study this image of Olympus Mons on Mars.  

    • A.

      This is the largest dormant volcano in our solar system.

    • B.

      This is an example of a shield volcano.

    • C.

      This dormant volcano contains a caldera at the top.

    • D.

      There is a lava plateau that surrounds the volcano itself.

    Correct Answer(s)
    A. This is the largest dormant volcano in our solar system.
    B. This is an example of a shield volcano.
    C. This dormant volcano contains a caldera at the top.
    Explanation
    This image shows Olympus Mons on Mars, which is the largest dormant volcano in our solar system. It is also an example of a shield volcano, which is characterized by its broad, gently sloping shape. Additionally, the volcano contains a caldera at the top, which is a large crater-like depression formed by the collapse of the volcano's summit.

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  • 19. 

    Which of the following pyroclastic materials will be carried all over the world by the jet stream?

    • A.

      Vent

    • B.

      Ash and gas

    • C.

      Lava

    Correct Answer
    B. Ash and gas
    Explanation
    Ash and gas are the pyroclastic materials that can be carried all over the world by the jet stream. The jet stream is a high-speed wind current found in the upper levels of the atmosphere. When a volcanic eruption occurs, it releases large amounts of ash and gas into the atmosphere. These materials can be carried by the jet stream for long distances, spreading them across different regions and even continents. This is why volcanic ash and gas can have global impacts, affecting air quality, climate, and aviation operations worldwide.

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  • 20. 

    What is the MOST abundant gas associated with volcanic activity?

    • A.

      Chlorine

    • B.

      Water vapor

    • C.

      Sulfur oxide

    • D.

      Carbon dioxide

    Correct Answer
    B. Water vapor
    Explanation
    Water vapor is the most abundant gas associated with volcanic activity because when magma rises to the surface, it contains a significant amount of dissolved water. As the magma reaches the lower pressure at the surface, the water vaporizes and is released into the atmosphere. This process leads to the formation of volcanic clouds and steam plumes. Additionally, water vapor plays a crucial role in the eruption dynamics and can contribute to the formation of explosive eruptions.

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  • 21. 

    Which of the following is TRUE about Cinder Cones?

    • A.

      Most of these volcanoes are built from lava fragments or cinders.

    • B.

      Cinder cones grow very rapidly.

    • C.

      The volcano grows around 1 central vent

    Correct Answer(s)
    A. Most of these volcanoes are built from lava fragments or cinders.
    B. Cinder cones grow very rapidly.
    C. The volcano grows around 1 central vent
    Explanation
    Cinder cones are volcanic landforms that are primarily built from lava fragments or cinders. These fragments are ejected into the air during volcanic eruptions and then accumulate and solidify around the vent, forming a cone-shaped structure. Additionally, cinder cones are known to grow very rapidly, as the loose nature of the volcanic material allows for quick accumulation and deposition. Lastly, cinder cones typically have a single central vent, from which the volcanic activity occurs.

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  • 22. 

    Identify this type of volcano

    • A.

      Shield

    • B.

      Composite

    • C.

      Cinder cone

    Correct Answer
    C. Cinder cone
    Explanation
    A cinder cone is a type of volcano that is formed from explosive eruptions. It is characterized by steep slopes and a symmetrical shape. These volcanoes are typically small in size and are composed of loose, fragmented volcanic material called cinders. The eruptions of cinder cone volcanoes are usually short-lived and produce ash, lava bombs, and pyroclastic flows. They are often found in volcanic fields and are the simplest and most common type of volcano.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 20, 2012
    Quiz Created by
    Rdteague
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