Podcast
Questions and Answers
Which type of plate boundary is characterized by plates moving towards each other?
Which type of plate boundary is characterized by plates moving towards each other?
- Convergent boundary (correct)
- Divergent boundary
- Subduction boundary
- Transform boundary
What geological process primarily occurs at divergent plate boundaries?
What geological process primarily occurs at divergent plate boundaries?
- Intense collision and mountain building
- Plates sliding past each other horizontally
- Subduction of one plate under another
- Formation of new crust as plates move apart (correct)
What type of movement characterizes transform plate boundaries?
What type of movement characterizes transform plate boundaries?
- Plates sliding past each other horizontally (correct)
- Plates moving directly towards each other
- Plates moving away from each other
- One plate subducting under another
Tectonic plate motion, continental drift, and seismic activity are directly influenced by the dynamics within which layer of the Earth?
Tectonic plate motion, continental drift, and seismic activity are directly influenced by the dynamics within which layer of the Earth?
Which layer of the Earth is composed of solid rock and includes the crust and upper mantle?
Which layer of the Earth is composed of solid rock and includes the crust and upper mantle?
Which of Earth's layers is characterized as a semi-molten, plastic-like zone that allows for the movement of the lithosphere?
Which of Earth's layers is characterized as a semi-molten, plastic-like zone that allows for the movement of the lithosphere?
What geological process is characterized by the divergence of seafloor, leading to the rise of molten material and formation of new crustal features?
What geological process is characterized by the divergence of seafloor, leading to the rise of molten material and formation of new crustal features?
What is the central concept of the continental drift theory?
What is the central concept of the continental drift theory?
What was the name of the supercontinent in the theory of continental drift?
What was the name of the supercontinent in the theory of continental drift?
Which factor explains why the Earth's inner core remains solid despite its extremely high temperature?
Which factor explains why the Earth's inner core remains solid despite its extremely high temperature?
Which of the following processes is primarily responsible for the creation of new oceanic crust?
Which of the following processes is primarily responsible for the creation of new oceanic crust?
What role does the semi-molten asthenosphere play in the movement of Earth's tectonic plates?
What role does the semi-molten asthenosphere play in the movement of Earth's tectonic plates?
How do convergent plate boundaries contribute to the changing surface of the Earth?
How do convergent plate boundaries contribute to the changing surface of the Earth?
In what way does the immense pressure within the Earth's inner core affect its state?
In what way does the immense pressure within the Earth's inner core affect its state?
Which of the following geological features is most commonly associated with transform plate boundaries?
Which of the following geological features is most commonly associated with transform plate boundaries?
The movement of which Earth layer is most directly responsible for tectonic plate activity and continental drift?
The movement of which Earth layer is most directly responsible for tectonic plate activity and continental drift?
How does the process of seafloor spreading contribute to the Earth's geological dynamics?
How does the process of seafloor spreading contribute to the Earth's geological dynamics?
How did the existence of Pangea support the theory of continental drift?
How did the existence of Pangea support the theory of continental drift?
How do scientists explain the behavior of the Earth's inner core, which remains solid despite extreme temperatures?
How do scientists explain the behavior of the Earth's inner core, which remains solid despite extreme temperatures?
Which of the following is a direct result of divergent plate boundaries?
Which of the following is a direct result of divergent plate boundaries?
Flashcards
Convergent boundaries
Convergent boundaries
Plates come together, often resulting in subduction or collision.
Divergent boundaries
Divergent boundaries
Plates move apart, leading to new crust formation.
Transform boundaries
Transform boundaries
Plates slide past each other horizontally, causing earthquakes.
Causes of tectonic activity
Causes of tectonic activity
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Lithosphere composition
Lithosphere composition
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Asthenosphere composition
Asthenosphere composition
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Lithosphere
Lithosphere
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Asthenosphere
Asthenosphere
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Seafloor spreading
Seafloor spreading
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Continental drift theory
Continental drift theory
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Pangea
Pangea
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Inner core state
Inner core state
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Study Notes
Plate Boundaries
- Convergent boundaries occur when plates come together
- Divergent boundaries occur when plates push apart
- Transform boundaries occur when plates slide past each other
Tectonic Plate Motion
- Tectonic plate motion, continental drift, earthquakes, and volcanic activity are caused by movement on a plastic-like layer of the mantle
Earth's Layers
- The crust & upper mantle are solid rock known as the lithosphere
- The middle mantle is soft liquid rock known as the asthenosphere
Lithosphere and Asthenosphere
- The lithosphere is the outermost layer of the mantle
- The asthenosphere is a semi-molten plastic-like layer below the lithosphere
Seafloor Spreading
- Seafloor spreading occurs when the seafloor diverges, causing molten material to seep up to the surface and form new mountains
Continental Drift
- Continental drift is the point in history when all of the Earth's continents were joined together, forming one supercontinent
Pangea
- The large continent is known as Pangea
Earth's Inner Core
- The inner core is solid because of the immense pressure from the rest of the Earth, despite it being the hottest layer
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