Earthquakes And Volcanoes Quiz

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Earthquakes And Volcanoes Quiz - Quiz

There are a lot of occurrences that occur on the earth surface that can be very disastrous in high levels. Earthquakes are usually as a result of shifts in the tectonic plates and volcanoes allow for hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. Test your knowledge on Volcanoes and Earthquakes by taking up this test!


Questions and Answers
  • 1. 

    What is the ritcher scale

    • A.

      A device that measures the number of earthquakes

    • B.

      A device that measures the intensity of a earthquake

    • C.

      A device that measures the name of a volcano

    Correct Answer
    B. A device that measures the intensity of a earthquake
    Explanation
    The Richter scale is a measurement scale used to quantify the intensity or magnitude of an earthquake. It was developed by Charles F. Richter in 1935 and is based on the amplitude of seismic waves recorded by seismographs. The scale ranges from 0 to 10, with each whole number increase representing a tenfold increase in the amplitude and approximately 31.6 times more energy released. Therefore, the correct answer is "A device that measures the intensity of an earthquake."

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  • 2. 

    The richter scale has never gone above 9

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because the Richter scale is a logarithmic scale used to measure the magnitude of earthquakes. It has no upper limit, meaning that it can go above 9. In fact, there have been several earthquakes in history that have registered above 9 on the Richter scale, such as the 1960 Valdivia earthquake in Chile, which had a magnitude of 9.5.

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  • 3. 

    A volcano that is no longer active is called what

    • A.

      Extinct

    • B.

      Dead

    • C.

      Sleeping

    Correct Answer
    A. Extinct
    Explanation
    An extinct volcano is a volcano that is no longer active and is unlikely to erupt again in the future. This term is used to describe a volcano that has not erupted for thousands of years and shows no signs of potential volcanic activity. The term "extinct" indicates that the volcano has completely ceased its volcanic activity and is considered to be permanently inactive.

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  • 4. 

    A earthquake is only noticeable by instruments up to what on the richter scale

    • A.

      5

    • B.

      4

    • C.

      3

    Correct Answer
    C. 3
    Explanation
    An earthquake is only noticeable by instruments up to a magnitude of 3 on the Richter scale. The Richter scale measures the energy released by an earthquake, and a magnitude of 3 is considered a minor earthquake. Magnitudes of 4 and 5 are considered moderate and strong earthquakes, respectively, and can be felt by people. However, earthquakes with magnitudes below 3 are usually only detected by seismographs and are not felt by humans.

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  • 5. 

    Molten rock is called

    • A.

      Sediment

    • B.

      Magma

    • C.

      Ash

    Correct Answer
    B. Magma
    Explanation
    Molten rock is called magma. Magma is the term used to describe molten rock that is found beneath the Earth's surface. It is formed when solid rock melts due to high temperatures and pressure. Magma is typically composed of a mixture of molten minerals, gases, and other materials. It is the precursor to volcanic eruptions and can eventually cool and solidify to form igneous rocks. Sediment refers to the accumulation of small particles, such as sand and silt, while ash is the fine particles that are ejected during volcanic eruptions.

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  • 6. 

    A eathquake is caused when

    • A.

      The earths plates rub together

    • B.

      When mountains collapse

    • C.

      Heavy storms

    Correct Answer
    A. The earths plates rub together
    Explanation
    Earthquakes are caused when the Earth's tectonic plates, which are large pieces of the Earth's crust, rub against each other. This rubbing can cause a release of energy, resulting in seismic waves that shake the ground. Mountains collapsing or heavy storms are not direct causes of earthquakes. While collapsing mountains can sometimes be associated with earthquakes, they are not the primary cause. Similarly, heavy storms can cause other natural disasters like floods or landslides, but they do not directly cause earthquakes.

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  • 7. 

    Volcanoes only erupt after a eathquake

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement "Volcanoes only erupt after an earthquake" is false. Volcanic eruptions can occur independently of earthquakes. While it is true that earthquakes can sometimes trigger volcanic eruptions, volcanic activity can also happen without any seismic activity. Volcanoes can erupt due to various factors such as pressure build-up within the magma chamber, gas emissions, or changes in the composition of the magma. Therefore, it is incorrect to say that volcanoes only erupt after an earthquake.

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  • Current Version
  • Feb 20, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 17, 2010
    Quiz Created by
    Cmassey
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