Earthquakes, Volcanic Eruptions, And Mountains

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| By 2000rks
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2000rks
Community Contributor
Quizzes Created: 1 | Total Attempts: 767
Questions: 8 | Attempts: 767

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Earthquake Quizzes & Trivia

Questions and Answers
  • 1. 

    Earthquakes may be caused by

    • A.

      Plates sliding past each other

    • B.

      Lava flowing down the side of a volcano

    • C.

      Plates spreading apart

    • D.

      Hot magma

    Correct Answer
    A. Plates sliding past each other
    Explanation
    Earthquakes can occur when tectonic plates, which make up the Earth's crust, slide past each other. These plates are constantly moving, and when they get stuck, pressure builds up until it is released in the form of an earthquake. This movement can happen along faults, which are fractures in the Earth's crust. As the plates slide past each other, they can cause vibrations and shaking, resulting in an earthquake.

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  • 2. 

    What is magma?

    • A.

      Hot lava that erupts out of volcanoes

    • B.

      The reason volcanoes form

    • C.

      Mixture of molten rock found beneath the surface of the earth

    • D.

      All of the above

    Correct Answer
    C. Mixture of molten rock found beneath the surface of the earth
    Explanation
    Magma is a mixture of molten rock found beneath the surface of the earth. This molten rock is in a highly heated and semi-liquid state, and it is the material that eventually erupts out of volcanoes as lava. Magma is the result of intense heat and pressure within the Earth's mantle, causing rocks to melt and form this molten mixture. It is the source of volcanic activity and plays a crucial role in the formation and eruption of volcanoes.

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  • 3. 

    What are the three different type of plant movements?

    • A.

      Divergent, consurgent, and translucent

    • B.

      Divergent, convergent and transform

    • C.

      Insurgent, continental, and transform

    • D.

      Divergent, insurgent and allegiant

    Correct Answer
    B. Divergent, convergent and transform
    Explanation
    The correct answer is divergent, convergent and transform. These are the three different types of plant movements. Divergent movement occurs when plant parts move away from each other, convergent movement occurs when plant parts move towards each other, and transform movement occurs when plant parts slide past each other horizontally.

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  • 4. 

    Mountains are formed by two divergent plates moving away from each other.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Mountains are not formed by two divergent plates moving away from each other. Instead, they are formed by two convergent plates colliding with each other. When two plates collide, the force causes the crust to fold and buckle, resulting in the formation of mountains. This process is known as plate tectonics and is responsible for the creation of most of the world's mountain ranges.

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  • 5. 

    When the denser oceanic plate subducts under the continental crust, it ________ up and turns into magma.

    Correct Answer
    heats
    Explanation
    When the denser oceanic plate subducts under the continental crust, it undergoes intense heat and pressure. This causes the plate to heat up and melt, transforming into magma. The heat generated during subduction is a result of the friction and collision between the two tectonic plates. As the oceanic plate sinks deeper into the Earth's mantle, it experiences higher temperatures, causing the rocks to melt and form magma.

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  • 6. 

    A mountain is formed after 

    • A.

      An earthquake

    • B.

      A volcano erupts

    • C.

      Weathering

    • D.

      A storm

    Correct Answer
    B. A volcano erupts
    Explanation
    A mountain is formed after a volcano erupts. During a volcanic eruption, molten rock, ash, and other materials are ejected from the volcano and accumulate over time, forming a cone-shaped mountain. The volcanic activity contributes to the growth and formation of the mountain as the erupted materials solidify and build up. This process can occur over thousands or millions of years, gradually creating a mountainous landscape.

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  • 7. 

    Plate tectonics is: a theory explaining that the Earth's outer layer (crust)  is made up of large  _______   ________  that are constantly moving over a weak layer of molten rock. 

    Correct Answer
    moving plates
    Explanation
    Plate tectonics is a theory that explains how the Earth's outer layer, known as the crust, is composed of large moving plates. These plates are constantly shifting and moving over a weak layer of molten rock beneath them. This movement of the plates is responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges.

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 31, 2015
    Quiz Created by
    2000rks
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