Plate Tectonics 1-a, 1-b, 2-a, 2-b

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1. What causes seismic waves?

Explanation

Seismic waves are caused by earthquakes. When there is a sudden release of energy in the Earth's crust due to the movement of tectonic plates, it creates seismic waves that travel through the Earth. These waves can cause the ground to shake and result in the destructive effects of an earthquake. Tidal waves, volcanoes, and tornadoes do not directly cause seismic waves, making earthquakes the correct answer.

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Plate Tectonics  1-a, 1-b, 2-a, 2-b - Quiz

This summative assessment will evaluate your knowledge of Plate Techtonics. Vocabulary, essential questions and concepts will be assessed.

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2. Take a look at this image.   This Boundary is an example of a transform-fault boundary.

Explanation

This image shows a boundary where two tectonic plates are sliding past each other horizontally. This type of boundary is known as a transform-fault boundary. At this boundary, there is a lot of seismic activity, as the plates grind against each other. This is characteristic of transform-fault boundaries, making the statement "This Boundary is an example of a transform-fault boundary" true.

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3. Tectonic plates consist of

Explanation

Tectonic plates are large, rigid pieces of the Earth's lithosphere that fit together like a puzzle. These plates are made up of both continental and oceanic crust. Continental crust is the thicker, less dense crust that forms the continents, while oceanic crust is the thinner, denser crust that forms the ocean floor. The interaction between these two types of crust creates various geological features such as mountains, trenches, and earthquakes. Therefore, the correct answer is both continental and oceanic crust.

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4. How do tectonic plates fit together?

Explanation

Tectonic plates fit together like a jigsaw puzzle because they have irregular shapes with edges that interlock, just like the pieces of a puzzle. The movement of these plates causes them to collide, slide past each other, or separate, resulting in various geological phenomena such as earthquakes, volcanic activity, and the formation of mountains. This analogy helps to visualize the complex interactions and arrangements of the Earth's tectonic plates.

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5. The surface along which rocks break and slide past each other is called?

Explanation

A fault is a surface along which rocks break and slide past each other. This movement is caused by the build-up of stress in the Earth's crust, which eventually exceeds the strength of the rocks, leading to their displacement. Faults can occur due to various geological processes such as tectonic plate movements or volcanic activity. They play a crucial role in shaping the Earth's surface and are responsible for earthquakes and the formation of mountains.

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6. Mountains can form at a CONVERGENT BOUNDARY.

Explanation

Mountains can form at a convergent boundary because this is where two tectonic plates collide. When two plates collide, the denser oceanic plate is forced beneath the less dense continental plate in a process called subduction. The subduction causes intense pressure and heat, leading to the melting of rocks and the formation of magma. This magma then rises to the surface, creating volcanic activity and the formation of mountains. Examples of mountain ranges formed at convergent boundaries include the Himalayas and the Andes.

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7. Take a look at this diagram.   What boundary type does this represent?

Explanation

The diagram represents a transform-fault boundary. This type of boundary occurs when two tectonic plates slide horizontally past each other. This movement can cause earthquakes, as the plates are locked and then suddenly slip, releasing energy. Transform-fault boundaries are commonly found along mid-ocean ridges and can be identified by the presence of strike-slip faults.

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8. What do we call the amount of force placed on something?

Explanation

Stress refers to the amount of force or pressure exerted on an object or material. It measures the internal resistance of an object to deformation or strain caused by external forces. Stress can be caused by various factors such as compression, tension, or shear forces. It is an important concept in physics and engineering as it helps determine the strength and stability of structures and materials.

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9. Take a look at this diagram.    Which boundary does this represent?

Explanation

The diagram represents a convergent boundary. This type of boundary occurs when two tectonic plates collide. In this process, one plate is forced beneath the other, forming a subduction zone. This collision can result in the formation of mountain ranges, volcanic activity, and the creation of deep ocean trenches.

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10. Take a look at this Image.  Based upon the evidence presented, which of the following is closer to the surface and is probably cooler in nature.

Explanation

Based on the evidence presented in the image, the aesthenosphere is closer to the surface and is probably cooler in nature. This can be inferred because the image shows a layer labeled as "aesthenosphere" located above the mantle and core. Since the aesthenosphere is closer to the surface compared to the mantle and core, it is likely to have a lower temperature.

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11. What kind of plate boundary occurs where two plates grind past each other without destroying or producing new lithospheric crust?

Explanation

A transform fault boundary occurs where two plates grind past each other without destroying or producing new lithospheric crust. This type of boundary is characterized by horizontal movement, where the plates slide past each other in opposite directions. Transform boundaries often result in earthquakes due to the friction and stress caused by the plates' movement. Unlike divergent boundaries, where new crust is created, and convergent boundaries, where crust is destroyed, transform fault boundaries do not involve any significant crustal formation or destruction.

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12. The deep interior of the Earth can be mapped using

Explanation

Seismic waves are the correct answer because they are vibrations that travel through the Earth's interior and can be used to map its deep interior. Seismic waves are generated by earthquakes or explosions and their behavior and characteristics can be studied to gain information about the Earth's composition, structure, and boundaries of different layers. This technique, known as seismology, is widely used to study the Earth's interior and has provided valuable insights into its geological processes and features. Sonar is used to map the ocean floor, drilling expeditions provide information about the Earth's crust, and ocean waves are not suitable for mapping the deep interior of the Earth.

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13. As you move away from a mid-ocean ridge (divergent boundary)  the oceanic crust becomes increasingly _____________.

Explanation

As you move away from a mid-ocean ridge, the oceanic crust becomes increasingly older. This is because at mid-ocean ridges, new crust is constantly being formed through volcanic activity and spreading apart of tectonic plates. As the crust moves away from the ridge, it gets older as it is pushed further away from the source of new crust formation.

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14. The lithospheric plates move an average of _______.

Explanation

The lithospheric plates move an average of 5 centimeters per year. This is a relatively slow movement, but over long periods of time, it can lead to significant changes in the Earth's surface. Plate tectonics is the theory that explains the movement of these plates, which are made up of the Earth's crust and uppermost part of the mantle. The movement of these plates is driven by convection currents in the mantle, causing them to collide, separate, or slide past each other. This movement can result in various geological phenomena such as earthquakes, volcanic activity, and the formation of mountains.

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15. What type of boundary occurs where two plates move together, causing one plate to descend into the mantle beneath the other plate?

Explanation

A convergent boundary occurs when two tectonic plates move towards each other, causing one plate to descend into the mantle beneath the other plate. This process is known as subduction and can result in the formation of mountain ranges, volcanic activity, and earthquakes.

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16. Why is it RARE that volcanoes form along transform boundaries?

Explanation

Volcanoes form when there is an eruption of magma from the Earth's mantle onto the surface. However, along transform boundaries, the tectonic plates slide past each other horizontally, causing shearing and intense friction. This type of movement does not allow for the creation of new magma, as there is no subduction or collision of plates. Therefore, it is rare for volcanoes to form along transform boundaries due to the absence of new magma formation.

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17. Volcanoes can form at TRANSFORM BOUNDARIES.

Explanation

Volcanoes do not form at transform boundaries. Transform boundaries are where two tectonic plates slide past each other horizontally. Volcanoes typically form at convergent boundaries, where two plates collide, or at divergent boundaries, where two plates move apart.

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18. According to the theory of plate tectonics

Explanation

The correct answer is "the lithosphere is divided into plates". The theory of plate tectonics states that the Earth's lithosphere, which includes the crust and upper mantle, is divided into several large and small plates. These plates are constantly moving and interacting with each other, leading to various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges. This concept helps explain the distribution of continents, ocean basins, and the occurrence of seismic and volcanic activity along plate boundaries.

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19. A tectonic plate consists of ______ .

Explanation

A tectonic plate is made up of the crust and the uppermost mantle. The crust is the outermost layer of the Earth, while the uppermost mantle is the layer directly beneath the crust. These two layers together form the tectonic plate, which is responsible for the movement and interaction of the Earth's lithosphere.

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20. Take a look at this IMAGE.   What is taking place at the boundary between the Oceanic Crust and the Continental Crust ?

Explanation

Subduction is the process where one tectonic plate slides beneath another plate at a convergent boundary. In this case, the oceanic crust is denser than the continental crust, causing it to subduct beneath the continental crust. This process results in the formation of deep ocean trenches and can lead to volcanic activity and the formation of mountain ranges. Therefore, subduction is the most likely process occurring at the boundary between the Oceanic Crust and the Continental Crust.

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21. What do scientists use to measure teconic plate movement?

Explanation

Scientists use global positioning systems (GPS) to measure tectonic plate movement. GPS technology allows scientists to track the precise location of different points on the Earth's surface. By monitoring the movement of these points over time, scientists can determine the speed and direction of tectonic plate movement. This information is crucial for understanding and predicting earthquakes, volcanic activity, and other geological phenomena. Clinometers measure angles, telescopes are used for observing distant objects, and seismographs measure seismic waves, but they are not specifically used for measuring tectonic plate movement.

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22. Two characteristics that make Oceanic Crust subduct under Continental Crust.  Choose the BEST 2 answers.

Explanation

The two characteristics that make Oceanic Crust subduct under Continental Crust are that oceanic crust is thinner and has a higher density. The thinner crust allows it to slide beneath the thicker continental crust, while the higher density causes it to sink into the mantle during subduction.

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23. Take a look at this image.   Based upon what you see, What type(s) of boundaries are being displayed?

Explanation

The image shows two types of boundaries: convergent and divergent. A convergent boundary occurs when two tectonic plates collide and move towards each other, resulting in the formation of mountains, trenches, and volcanoes. On the other hand, a divergent boundary is formed when two plates move away from each other, causing the creation of new crust through volcanic activity. The image likely displays evidence of both types of boundaries based on the geological features present.

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24. Take a look at this diagram.    What type of boundary does this represent?

Explanation

The diagram represents a convergent boundary. In this type of boundary, two tectonic plates are moving towards each other. This movement can result in the collision of the plates, causing the formation of mountains, volcanic activity, and the subduction of one plate beneath the other. This boundary is characterized by intense geological activity and can lead to the creation of various landforms such as mountain ranges and trenches.

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25. Take a look at this image.   Based upon what you see, choose the answers(s) that best describe characteristics of this image.

Explanation

The image shows a mid-ocean ridge, which is a characteristic feature of seafloor spreading. The older rocks are located at the extreme left and right away from the ridge, indicating the process of seafloor spreading. The fact that the magnetic poles of the ocean crust have reversed several times is also consistent with seafloor spreading. Additionally, the image shows the presence of a divergent boundary, where the seafloor is spreading apart. Therefore, the given answer correctly describes the characteristics of the image.

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What causes seismic waves?
Take a look at this image.   This Boundary is an example of...
Tectonic plates consist of
How do tectonic plates fit together?
The surface along which rocks break and slide past each other is...
Mountains can form at a CONVERGENT BOUNDARY.
Take a look at this diagram.   What boundary type does this...
What do we call the amount of force placed on something?
Take a look at this diagram.    Which boundary does...
Take a look at this Image.  Based upon the evidence presented,...
What kind of plate boundary occurs where two plates grind past each...
The deep interior of the Earth can be mapped using
As you move away from a mid-ocean ridge (divergent boundary)  the...
The lithospheric plates move an average of _______.
What type of boundary occurs where two plates move together, causing...
Why is it RARE that volcanoes form along transform boundaries?
Volcanoes can form at TRANSFORM BOUNDARIES.
According to the theory of plate tectonics
A tectonic plate consists of ______ .
Take a look at this IMAGE.   What is taking place at the...
What do scientists use to measure teconic plate movement?
Two characteristics that make Oceanic Crust subduct under Continental...
Take a look at this image.   Based upon what you see, What...
Take a look at this diagram.    What type of boundary...
Take a look at this image.   Based upon what you see, choose...
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