Volcano And Landslide Quiz

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| By Dinize
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Dinize
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Quizzes Created: 2 | Total Attempts: 3,368
Questions: 15 | Attempts: 520

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Volcano And Landslide Quiz - Quiz

Test your knowledge of Volcanoes and Landslides!


Questions and Answers
  • 1. 

    A __________________________ is an opening in the earth's crust through which molten lava, ash, and gases are ejected.

    Explanation
    A volcano is an opening in the earth's crust through which molten lava, ash, and gases are ejected. Volcanoes are formed when there is a buildup of pressure from the molten rock beneath the earth's surface. This pressure causes the magma to rise and eventually erupt through the volcano's opening. The eruption releases lava, which flows down the sides of the volcano, as well as ash and gases that are expelled into the atmosphere. Volcanoes can be found on land or under the ocean, and they are often associated with tectonic plate boundaries.

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  • 2. 

    What is magma?

    • A.

      A drink.

    • B.

      A layer of the earth.

    • C.

      Molten Rock.

    • D.

      Sand being burnt.

    Correct Answer
    C. Molten Rock.
    Explanation
    Magma is the correct answer because it refers to molten rock that is found beneath the Earth's surface. It is a hot, fluid material that consists of various elements and compounds, including silicates, gases, and dissolved minerals. Magma is responsible for volcanic activity when it reaches the surface as lava. It plays a crucial role in shaping the Earth's crust and is an essential component in the formation of igneous rocks.

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  • 3. 

    What is magma called when the magma reaches the surface?

    • A.

      Lava

    • B.

      Magma

    • C.

      Fire

    • D.

      Mayonnaise

    • E.

      Hot rocks.

    Correct Answer
    A. Lava
    Explanation
    When magma reaches the surface, it is called lava. Magma is the molten rock beneath the Earth's surface, while lava is the term used for magma that has erupted onto the surface.

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  • 4. 

    How does magma leave the volcano?

    • A.

      The pressure around it pushes it up.

    • B.

      The heat outside of the volcano.

    • C.

      The magma flies out.

    • D.

      A leak at the bottom of the volcano.

    Correct Answer
    A. The pressure around it pushes it up.
    Explanation
    Magma leaves the volcano because of the pressure around it pushing it up. As magma rises towards the surface, the pressure from the surrounding rocks and gases increases. This pressure builds up until it becomes strong enough to overcome the weight of the overlying rocks and forces the magma to erupt out of the volcano.

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  • 5. 

    Where is Mount Saint Helens located in the United States?

    • A.

      Montana

    • B.

      Oregon

    • C.

      California

    • D.

      Washington

    Correct Answer
    D. Washington
    Explanation
    Mount Saint Helens is located in Washington. It is an active stratovolcano that is part of the Cascade Range in the Pacific Northwest region of the United States. The volcano is known for its catastrophic eruption in 1980, which resulted in the loss of lives and extensive damage to the surrounding area.

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  • 6. 

    Volcanoes are good for the earth.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Volcanoes are good for the earth because they play a crucial role in the formation of new land. When volcanoes erupt, they release magma, which cools and solidifies to form new rocks and landmasses. Additionally, volcanic ash contains minerals and nutrients that enrich the soil, making it fertile for agriculture. Volcanic activity also helps regulate the earth's temperature by releasing gases and particles into the atmosphere, which can have both cooling and warming effects. Overall, volcanoes contribute to the geological and ecological balance of the earth.

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  • 7. 

    Volcanoes help _______________________. (More than one answer).

    • A.

      Create new landforms.

    • B.

      To get rid of old plants and houses.

    • C.

      Make fertile soil for growing crops.

    Correct Answer(s)
    A. Create new landforms.
    C. Make fertile soil for growing crops.
    Explanation
    Volcanoes help create new landforms by erupting and releasing lava, which cools and hardens to form new land. They also contribute to the formation of islands and mountains. Additionally, volcanic eruptions can release ash and other materials that enrich the soil, making it fertile for growing crops.

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  • 8. 

    In 1980, ______________________, gave North American its largest volcanic eruption.

    Correct Answer(s)
    Mt. St. Helens
    Mount Saint Helens
    St. Helens
    Saint Helens
    Explanation
    In 1980, the largest volcanic eruption in North America was caused by Mt. St. Helens, also known as Mount Saint Helens, St. Helens, or Saint Helens.

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  • 9. 

    A ___________________________ is the usually rapid downward movement of a mass of rock, earth, or artificial fill on a slope.

    Correct Answer(s)
    landslide
    Explanation
    A landslide refers to the usually rapid downward movement of a mass of rock, earth, or artificial fill on a slope.

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  • 10. 

    A ________________________ is the rapid downward movement of rock fragments that slide over an inclined surface.

    Correct Answer(s)
    rockslide
    Explanation
    A rockslide refers to the rapid downward movement of rock fragments that slide over an inclined surface.

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  • 11. 

    Wildfires can contribute to landslides.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Wildfires can contribute to landslides because they can weaken the soil and vegetation that hold the ground together. When a wildfire burns through an area, it can destroy the roots of trees and other plants, leaving the soil exposed and vulnerable to erosion. Additionally, the intense heat from the fire can cause the soil to become hydrophobic, meaning it repels water instead of absorbing it. This can lead to increased runoff during heavy rain, which can trigger landslides as the soil becomes saturated and unstable. Therefore, it is true that wildfires can contribute to landslides.

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  • 12. 

    This is an example of a ________________________.

    • A.

      Rockslide

    • B.

      Earthquake

    • C.

      Volcano

    • D.

      Landslide

    Correct Answer
    D. Landslide
    Explanation
    This question is asking for the correct term to describe the given example. In this case, the example is a "landslide," which refers to the rapid movement of a large amount of soil, rocks, or debris down a slope. A landslide can be caused by various factors such as heavy rainfall, earthquakes, or human activities.

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  • 13. 

    This is an example of a ____________________________

    • A.

      Earthquake

    • B.

      Rockslide

    • C.

      Mudslide

    • D.

      Landslide

    Correct Answer
    B. Rockslide
    Explanation
    This is an example of a rockslide, which is a type of natural disaster where large rocks or boulders slide down a slope or cliff. Rockslides can be triggered by earthquakes, heavy rainfall, or erosion of the slope. They can be extremely dangerous, causing damage to infrastructure and posing a threat to human life.

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  • 14. 

    Heavy rainfall DOES NOT cause landslides.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Heavy rainfall can indeed cause landslides. When the soil becomes saturated with water, it can lose its stability and become more prone to sliding. The added weight of the water can also increase the pressure on slopes, further increasing the risk of landslides. Therefore, heavy rainfall is a common trigger for landslides in many areas around the world.

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  • 15. 

    Volcanoes and Earthquakes may cause landslides.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Volcanoes and earthquakes can cause landslides due to the intense shaking and ground movement they generate. The violent eruptions of volcanoes can dislodge large amounts of loose rocks and debris, triggering landslides. Similarly, earthquakes can shake the ground forcefully, causing slopes to become unstable and leading to landslides. These natural disasters have the potential to significantly alter the landscape and pose a threat to human settlements and infrastructure.

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