Geology Trivia Quiz On Earth's Interior And Pangaea!

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Geology Trivia Quiz On Earths Interior And Pangaea! - Quiz

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Do you think you have what it takes to tackle this geology trivia quiz on Earth's interior and Pangaea? The Earth is divided into the hot inner core, the molten outer core, the mantle, and the thin crust. It is believed that the continents were made from one large landmass known as Pangea when tectonic plates moved. Do you know what makes the layers different from each other? Get to refresh your geology understanding.


Questions and Answers
  • 1. 

    What is the center of most layers of the Earth?

    • A.

      Outer core

    • B.

      Inner core

    • C.

      Mantle

    • D.

      Troposphere

    Correct Answer
    B. Inner core
    Explanation
    The correct answer is the inner core. The inner core is located at the center of the Earth and is composed primarily of solid iron and nickel. It is the innermost layer of the Earth and is believed to have a solid, spherical shape. The inner core is surrounded by the outer core, mantle, and crust. It plays a crucial role in the Earth's magnetic field and is responsible for generating and maintaining it.

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  • 2. 

    The layer of the Earth that is both liquid and solid is the

    • A.

      Outer core

    • B.

      Inner core

    • C.

      Mantle

    • D.

      Crust

    Correct Answer
    C. Mantle
    Explanation
    The mantle is the layer of the Earth that is both liquid and solid. It is located between the crust and the outer core. The upper part of the mantle is solid, while the lower part is in a semi-liquid state due to the high temperature and pressure. This semi-liquid layer is known as the asthenosphere. The mantle plays a crucial role in the movement of tectonic plates and the convection currents that drive plate tectonics.

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  • 3. 

    The solid least dense layer of the Earth is the

    • A.

      Mantle

    • B.

      Inner core

    • C.

      Crust

    • D.

      Outer core

    Correct Answer
    C. Crust
    Explanation
    The crust is the solid least dense layer of the Earth. It is the outermost layer, consisting of solid rock and soil. The crust is relatively thin compared to the other layers of the Earth, and it floats on top of the denser mantle and core. This layer is where we find the continents and ocean basins, and it plays a crucial role in supporting life on Earth.

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  • 4. 

    What is the only liquid layer of the Earth?

    • A.

      Crust

    • B.

      Inner core

    • C.

      Mantle

    • D.

      Outer core

    Correct Answer
    D. Outer core
    Explanation
    The outer core is the only liquid layer of the Earth. The crust is the outermost layer, but it is solid. The inner core is the innermost layer, but it is solid due to extreme pressure. The mantle is located between the crust and the outer core, and although it is mostly solid, it can behave like a plastic due to high temperature and pressure. Therefore, the only layer that is entirely liquid is the outer core.

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  • 5. 

    What happens to density as you go deeper into the Earth?

    • A.

      It decreases

    • B.

      It stay the same

    • C.

      In increases

    • D.

      No one knows

    Correct Answer
    C. In increases
    Explanation
    As you go deeper into the Earth, the pressure and temperature increase. This increase in pressure causes the atoms and molecules to be packed closer together, resulting in an increase in density. Therefore, the correct answer is "it increases".

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  • 6. 

    What happens to temperature as you go deeper into the Earth?

    • A.

      In decreases

    • B.

      In increases

    • C.

      It stays the same

    • D.

      It varies

    Correct Answer
    B. In increases
    Explanation
    As you go deeper into the Earth, the temperature increases. This is because the Earth's core is extremely hot, reaching temperatures of thousands of degrees Celsius. The heat from the core gradually radiates outwards towards the surface, causing the temperature to rise as you go deeper. This increase in temperature is also evident in phenomena like volcanic activity and geothermal energy.

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  • 7. 

    The dense metallic layer of the Earth is the

    • A.

      Mantle

    • B.

      Outer core

    • C.

      Crust

    • D.

      Inner core

    Correct Answer
    D. Inner core
    Explanation
    The correct answer is the inner core. The inner core is a dense metallic layer located at the center of the Earth. It is primarily composed of solid iron and nickel, with extreme temperatures and pressures causing it to remain in a solid state despite its high temperature. The inner core is believed to play a crucial role in generating Earth's magnetic field and contributes to the overall structure and dynamics of the planet.

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  • 8. 

    The layer on which we live is the

    • A.

      Outer core

    • B.

      Troposphere

    • C.

      Mantle

    • D.

      Crust

    Correct Answer
    D. Crust
    Explanation
    The crust is the outermost layer of the Earth on which we live. It is the thinnest layer, ranging from 5 to 70 kilometers in thickness. The crust is made up of solid rock and is divided into continental crust and oceanic crust. The continental crust is thicker and less dense than the oceanic crust. It is composed mainly of granite and forms the continents. The oceanic crust is thinner and denser, primarily composed of basalt, and forms the ocean floor. The crust is where all landforms, such as mountains, valleys, and plains, are located, and it is where all life on Earth exists.

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  • 9. 

    The idea that continents slowly move over Earth's surface is called

    • A.

      Pangaea

    • B.

      Plate tectonics

    • C.

      Continental drift

    • D.

      Landmass movement

    Correct Answer
    C. Continental drift
    Explanation
    Continental drift refers to the concept that continents on Earth's surface are not fixed but rather move slowly over time. This theory was proposed by Alfred Wegener in the early 20th century and has since been supported by scientific evidence. It explains various geological phenomena such as the matching coastlines of continents, the distribution of fossils, and the presence of similar rock formations across different continents. Plate tectonics is a related concept that further explains the movement of continents by describing the Earth's lithosphere broken into several plates that interact at their boundaries. Pangaea refers to the supercontinent that existed around 300 million years ago, which later broke apart into the continents we know today.

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  • 10. 

    The plates move because

    • A.

      The wind blows them

    • B.

      Ocean currents

    • C.

      Convection in the mantle

    • D.

      Convection in the core

    Correct Answer
    C. Convection in the mantle
    Explanation
    The plates move because of convection in the mantle. Convection is the process of heat transfer through the movement of hot and cold material. In the mantle, the heat from the core causes the rock to become less dense and rise, while the cooler rock sinks. This movement creates a circular motion, similar to a conveyor belt, which pushes the plates on the Earth's surface. Therefore, convection in the mantle is responsible for the movement of the plates.

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  • 11. 

    Wegener's hypothesis was

    • A.

      That the landmasses have always been in the same places.

    • B.

      That the landmasses had been joined together as Pangaea, and have since drifted apart.

    • C.

      That the continents do not move.

    • D.

      That earthquakes have caused the landmasses to move.

    Correct Answer
    B. That the landmasses had been joined together as Pangaea, and have since drifted apart.
    Explanation
    Wegener's hypothesis suggests that the landmasses were once connected as a supercontinent called Pangaea and have since moved apart through the process of continental drift. This theory explains the similarities in fossils, rock formations, and geological features found on different continents. It also accounts for the matching coastlines and the way continents seem to fit together like puzzle pieces. Wegener proposed that the movement of the landmasses was gradual and occurred over millions of years. This hypothesis was a groundbreaking idea in the field of geology and laid the foundation for our understanding of plate tectonics.

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  • 12. 

    One piece of evidence for Pangaea was that

    • A.

      The same fossilized organism was found on two different continents.

    • B.

      Part of an organism was found on one landmass and the other part on another landmass.

    • C.

      A land bridge was found.

    • D.

      People are found on all landmasses.

    Correct Answer
    A. The same fossilized organism was found on two different continents.
    Explanation
    The correct answer is "the same fossilized organism was found on two different continents." This evidence supports the theory of Pangaea, as it suggests that the continents were once connected and the organism was able to move freely between them. If the continents were separate and isolated, it would be unlikely for the same organism to be found on two different continents.

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  • 13. 

    Pangaea existed

    • A.

      About 100 thousand years ago

    • B.

      About 5 million years ago

    • C.

      About 250 million years ago

    • D.

      In the past and still exists today

    Correct Answer
    C. About 250 million years ago
    Explanation
    Pangaea, the supercontinent, existed about 250 million years ago. This was during the late Paleozoic and early Mesozoic eras. Pangaea began to break apart around 200 million years ago, leading to the formation of the continents we know today. The correct answer indicates the timeframe when Pangaea was present on Earth, aligning with scientific understanding and geological evidence.

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  • 14. 

    The Mesosaurus fossil being found on two sides of an ocean are the result of

    • A.

      Earthquakes

    • B.

      A land bridge

    • C.

      The Mesosaurus swimming across the ocean

    • D.

      The movement of tectonic plates

    Correct Answer
    D. The movement of tectonic plates
    Explanation
    The correct answer is the movement of tectonic plates. This explanation suggests that the Mesosaurus fossils found on two sides of an ocean can be attributed to the movement of tectonic plates. As the plates shift and move over time, they can carry the fossils along with them, resulting in the fossils being found in different locations. This explanation aligns with the concept of plate tectonics, which explains the movement and interaction of Earth's lithospheric plates.

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  • 15. 

    No one believed Wegener because

    • A.

      He did not give any evidence.

    • B.

      He did not provide an explanation for the force that moved the continents.

    • C.

      He was not well-liked by people.

    • D.

      His ideas were false.

    Correct Answer
    B. He did not provide an explanation for the force that moved the continents.
    Explanation
    While Wegener provided evidence that the continents were once joined and had moved, he was unable to propose a convincing mechanism that explained how the continents could drift across the Earth's surface. The lack of a mechanism for continental movement was a major factor in the rejection of his theory by many geologists of the time. Wegener speculated that it might be due to centrifugal force or the Earth's rotation, which were not persuasive with the contemporary understanding of physics.

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  • Current Version
  • Apr 16, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 16, 2009
    Quiz Created by
    Marquart
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