Plate Tectonics Study Guide

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What is a Divergent Plate Boundary?

Back

A Divergent Plate Boundary is where two tectonic plates move away from each other, leading to the formation of new crust, often seen at mid-ocean ridges.

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What is a Convergent Plate Boundary?

Back

A Convergent Plate Boundary is where two tectonic plates collide, which can result in the formation of mountains, earthquakes, and volcanic activity.

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What is the theory of Continental Drift?

Back

The theory of Continental Drift states that continents have moved apart over millions of years, suggesting they were once joined together.

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What is Plate Tectonics?

Back

Plate Tectonics is the scientific theory that explains the movement of the Earth's lithosphere, which is divided into tectonic plates.

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What is Seafloor Spreading?

Back

Seafloor Spreading is the process by which new oceanic crust is formed at mid-ocean ridges as tectonic plates pull apart.

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What evidence supports the theory of Continental Drift?

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The shape of the landmasses seems to fit together, like pieces of a jigsaw puzzle, providing evidence that continents were once connected.

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What are the products of a Divergent Plate Boundary?

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Products include new crust, mid-ocean ridges, and rift valleys. Earthquakes can occur, but mountains and volcanoes are not typical.

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What happens at a Transform Plate Boundary?

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At a Transform Plate Boundary, two tectonic plates slide past each other, which can cause earthquakes.

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What is an example of a Convergent Plate Boundary?

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An example of a Convergent Plate Boundary is the boundary between the Indian Plate and the Eurasian Plate, which formed the Himalayas.

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What is an example of a Divergent Plate Boundary?

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An example of a Divergent Plate Boundary is the Mid-Atlantic Ridge, where the Eurasian and North American plates are moving apart.