plate tectonics

Front

What is plate tectonics?

Back

Plate tectonics is the scientific theory that describes the large-scale movement of Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere beneath.

Front

What is a convergent boundary?

Back

A convergent boundary is a tectonic plate boundary where two plates move toward each other, often resulting in the formation of mountains, earthquakes, or volcanic activity.

Front

What geologic feature is commonly formed at a convergent boundary between two continental plates?

Back

Mountains are commonly formed at convergent boundaries between two continental plates.

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What is a subduction zone?

Back

A subduction zone is a region where one tectonic plate slides beneath another, often leading to volcanic activity and the formation of deep ocean trenches.

Front

Who proposed the theory of continental drift?

Back

Alfred Wegener proposed the theory of continental drift, suggesting that continents were once joined and have since drifted apart.

Front

What is the difference between continental crust and oceanic crust?

Back

Continental crust is thicker and less dense than oceanic crust, which is thinner and denser.

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What geological forces are responsible for mountain ranges?

Back

Converging tectonic plates are responsible for the formation of mountain ranges.

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What happens at a divergent boundary?

Back

At a divergent boundary, tectonic plates move away from each other, leading to the formation of new crust, often seen in mid-ocean ridges.

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What is an example of a geological feature formed by oceanic-continental convergence?

Back

An example of a geological feature formed by oceanic-continental convergence is a volcanic arc.

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What is the Ring of Fire?

Back

The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur, primarily due to tectonic plate movements.