Theory of Plate Tectonics


 
 
Concept Explanation
 

Theory of Plate Tectonics

Plate tectonics is responsible for the formation of mountains and valleys on the surface of the Earth. These features can take millions of years to form. However, sometimes, sudden and strong movements rake place within the Earth, which bring about massive changes on the surface of the Earth. Changes brought about on the Earth’s surface by earthquakes, volcanoes and landslides. Internal forces are also known as endogenetic forces.

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Sample Questions
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Question : 1

Which of the following disasters occur because of tectonic plates?

Right Option : D
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Question : 2

Plate tectonics is the theory that Earth's outer shell is divided into __________ plates .

Right Option : C
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Question : 3

Movement of the plates over earth's surface is termed __________.

Right Option : D
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