Trivia Facts On Earth's Interior! Quiz

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  • 1/20 Questions

    What is the hottest layer in the Earth?

    • Mantle
    • Core
    • Crust
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About This Quiz

Electricity MCQ trivia: Electricity is said to be produced when an electron moves through conductors. Electricity makes it possible to transfer energy in order to make some work easier. There are different sources from which electricity can be derived. Some are renewable, while others are not. In this quiz, you will get to test out how well you know some sources of electricity and how it is transmitted and created.

Trivia Facts On Earths Interior! Quiz - Quiz

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  • 2. 

    What layer is under the crust?

    • The inner core

    • The mantle

    • The outer core

    • There is no layer below the crust

    Correct Answer
    A. The mantle
    Explanation
    The mantle is the layer that is located directly beneath the Earth's crust. It is composed of solid rock and is the thickest layer of the Earth. The mantle is responsible for the movement of tectonic plates and the convection currents that drive plate tectonics. It extends from the crust to the outer core and plays a crucial role in the Earth's geology and the dynamic processes occurring within the planet.

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  • 3. 

    What layer is below the outer core?

    • The crust

    • The mantle

    • The inner core

    • There is no layer below the outer core

    Correct Answer
    A. The inner core
    Explanation
    The correct answer is the inner core. The inner core is the deepest layer of the Earth, located beneath the outer core. It is a solid sphere composed mainly of iron and nickel, with extremely high temperatures and pressures. The inner core is responsible for generating Earth's magnetic field and plays a crucial role in the dynamics of the planet's interior.

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  • 4. 

    What layer is below the mantle?

    • The outer core

    • There is no layer below the mantle

    • The inner core

    • The crust

    Correct Answer
    A. The outer core
    Explanation
    The correct answer is the outer core. The mantle is located between the crust and the outer core in the Earth's interior structure. The outer core is a layer of molten iron and nickel that surrounds the solid inner core. It is responsible for generating the Earth's magnetic field through the movement of its liquid metal.

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  • 5. 

    The core is

    • Made of rock

    • Very cool

    • Very hot

    • Blue in color

    Correct Answer
    A. Very hot
    Explanation
    The core is very hot because it is the innermost part of the Earth, where temperatures can reach up to 5700 degrees Celsius. The core is primarily composed of molten iron and nickel, which generate intense heat due to the immense pressure and radioactive decay. This high temperature is responsible for driving the convection currents that create Earth's magnetic field and contribute to the movement of tectonic plates on the surface.

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  • 6. 

    What is the Earth's 'internal heat source'?

    • Mantle

    • Crust

    • Core

    Correct Answer
    A. Core
    Explanation
    The Earth's 'internal heat source' refers to the heat generated from within the planet. This heat is primarily produced by the core, which is the innermost layer of the Earth. The core is made up of a solid inner core and a liquid outer core, and it contains a large amount of heat due to the radioactive decay of elements and residual heat from the planet's formation. This heat from the core is responsible for driving geological processes such as plate tectonics and volcanic activity on the Earth's surface.

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  • 7. 

    What is the coldest layer?

    • The mantle

    • The crust

    • The inner core

    • The outer core

    Correct Answer
    A. The crust
    Explanation
    The correct answer is the crust. The crust is the outermost layer of the Earth and is the coldest layer compared to the mantle, inner core, and outer core. The crust is composed of solid rock and is where we live, while the other layers beneath it are hotter and made up of molten rock or metal.

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  • 8. 

    How do we know about the interior of the Earth?

    • We have sent robots down to the core

    • We have giant ex-ray machines

    • Earthquakes

    • We have sensors that can take pictures of the layers

    Correct Answer
    A. Earthquakes
    Explanation
    Earthquakes provide valuable information about the interior of the Earth. When seismic waves generated by an earthquake travel through the Earth, they are affected by the different layers and structures they encounter. By studying the behavior of these waves, scientists can infer the composition, density, and other properties of the Earth's interior. This allows them to create models and maps of the Earth's structure, including the core, mantle, and crust. Therefore, earthquakes serve as a natural source of information that helps us understand the interior of the Earth.

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  • 9. 

    What layer is made of mostly iron and nickel?

    • Core

    • Mantle

    • Crust

    Correct Answer
    A. Core
    Explanation
    The layer made of mostly iron and nickel is the core. This is because the core is the innermost layer of the Earth and is composed mainly of iron and nickel. The core is divided into two parts: the outer core, which is liquid, and the inner core, which is solid. The presence of iron and nickel in the core is due to the dense nature of these elements, which sank towards the center of the Earth during its formation.

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  • 10. 

    If the Earth was a peach the pit would be the

    • Mantle

    • Core

    • Crust

    Correct Answer
    A. Core
    Explanation
    If the Earth was compared to a peach, the pit would represent the core. The core is the innermost layer of the Earth, made up of mostly iron and nickel. It is the hottest and densest part of the Earth, similar to the hard and dense pit of a peach. The mantle and crust, on the other hand, would represent the fleshy part and skin of the peach respectively.

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  • 11. 

    What layer has 2/3 of Earth's mass?

    • Outer core

    • Mantle

    • Crust

    • Inner core

    Correct Answer
    A. Mantle
    Explanation
    The mantle is the layer of the Earth that lies between the crust and the outer core. It is the thickest layer and makes up about 2/3 of the Earth's mass. The mantle is composed of solid rock, although it can flow slowly over long periods of time. It plays a crucial role in Earth's geology and the movement of tectonic plates.

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  • 12. 

    What are the pieces of the Earth's crust called?

    • Rocks

    • Plates

    • Puzzle pieces

    • Continents

    Correct Answer
    A. Plates
    Explanation
    The pieces of the Earth's crust are called plates. These plates are large sections of the Earth's lithosphere that float on the semi-fluid asthenosphere beneath them. The movement and interaction of these plates are responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges. The theory of plate tectonics explains how these plates move and interact with each other, shaping the Earth's surface over millions of years.

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  • 13. 

    The crust is

    • Flexible

    • A liquid and a solid

    • Metallic

    • Solid rock

    Correct Answer
    A. Solid rock
    Explanation
    The crust is made up of solid rock. This is supported by scientific evidence that shows the Earth's crust is composed of solid materials such as granite, basalt, and sedimentary rocks. These rocks form a solid outer layer that provides stability and support to the Earth's surface. The solid nature of the crust also explains why it is able to support the weight of the continents and oceans above it.

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  • 14. 

    What layer has convection currents?

    • Inner core

    • Crust

    • Mantle

    • Outer core

    Correct Answer
    A. Mantle
    Explanation
    Convection currents occur in the mantle. The mantle is the layer of the Earth located between the crust and the outer core. It is composed of hot and semi-fluid rock that is constantly moving due to the heat generated by the Earth's core. This movement creates convection currents, as the hot material rises and the cooler material sinks. These currents play a crucial role in the movement of tectonic plates and the formation of volcanic activity and earthquakes.

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  • 15. 

    What causes the plates to move?

    • Ocean currents

    • Large machines

    • Movement in the core

    • Convection in the mantle

    Correct Answer
    A. Convection in the mantle
    Explanation
    The movement of plates is caused by convection in the mantle. Convection is the transfer of heat through the movement of a fluid, in this case, the mantle. As the mantle heats up, it becomes less dense and rises towards the surface. As it cools down, it becomes more dense and sinks back down. This continuous cycle of rising and sinking creates a convection current, which drags the tectonic plates along with it. This movement of the plates is responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountains.

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  • 16. 

    What layer has properties of both a solid and a liquid?

    • Mantle

    • Inner core

    • Outer core

    • Crust

    Correct Answer
    A. Mantle
    Explanation
    The mantle is the layer of the Earth that lies between the crust and the outer core. It is composed of solid rock, but due to the intense heat and pressure, it behaves like a plastic material, exhibiting properties of both a solid and a liquid. This is known as the mantle's rheology, where it can flow and deform over long periods of time, similar to the behavior of a thick liquid.

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  • 17. 

    A material similar to the mantle's material would be

    • Wood

    • Copper

    • Silly putty

    • Glass

    Correct Answer
    A. Silly putty
    Explanation
    Silly putty is a suitable material similar to the mantle's material because it shares some key characteristics. The mantle is a layer of the Earth that lies beneath the crust and is composed of hot, semi-solid rock. Silly putty, although not a rock, also has a semi-solid and malleable nature. It can be stretched, molded, and deformed, just like the mantle. Wood, copper, and glass do not possess similar properties to the mantle, making silly putty the most appropriate choice.

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  • 18. 

    Oceanic crust is

    • Thin and light

    • Thin and heavy

    • Thick and light

    • Thick and heavy

    Correct Answer
    A. Thin and heavy
    Explanation
    The correct answer is "thin and heavy" because oceanic crust is thinner compared to continental crust and it is denser or heavier due to the presence of basaltic rocks and minerals. This type of crust is found beneath the ocean basins and is formed through volcanic activity at mid-ocean ridges. The thinness and density of the oceanic crust contribute to its ability to sink beneath the less dense continental crust in subduction zones.

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  • 19. 

    What layer is solid because of the pressure of overlying rocks?

    • Crust

    • Outer core

    • Mantle

    • Inner core

    Correct Answer
    A. Inner core
    Explanation
    The inner core is solid because of the pressure of overlying rocks. The immense weight of the rocks above exerts a tremendous amount of pressure on the inner core, causing it to remain in a solid state despite the high temperatures. This pressure prevents the inner core from melting and maintains its solid composition.

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  • 20. 

    Continental crust is

    • Thin and light

    • Thin and heavy

    • Thick and light

    • Thick and heavy

    Correct Answer
    A. Thick and light
    Explanation
    Continental crust is thick and light because it is composed mainly of granitic rocks, which have a lower density compared to the denser basaltic rocks that make up the oceanic crust. The continental crust is thicker than the oceanic crust due to the accumulation of sediments and the presence of mountain ranges. Its lighter composition and greater thickness allow it to "float" on the denser mantle beneath it, resulting in the formation of continents.

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  • Current Version
  • Jun 17, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 09, 2010
    Quiz Created by
    Marquart
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