Theory of Plate Tectonics
Theory of Plate Tectonics
Theory of plate tectonics: Many Earth scientists have tried to describe the formation of physical features with help of various theories. One such theory is the “Theory of Plate Tectonics”. Plate Tectonics is a scientific theory that describes the large-scale motion of Earth lithosphere. According to this theory, the Earth’s crust (upper part) is made up of Seven major and some minor lithosphere plates. Stresses within the plates and continental rocks above resulted in the movement of the plates. This movement of the plates leads to folding, faulting and volcanic activity.
The movement of the plates is classified into three type
Rock formation This is the result of weathering and erosion of existing rocks.
Lithospheric plates Pieces of rigid landmass floatin over liquid magma.
Folding Warping of rocks due to compressional forces.
Faulting Development of cracks and factures on the Earth surface due to stress.
moveents of these plates have changed the position and size of the continents over millions of years. They have led to the evalution of the present landform features of India. Most volcanoes and earthquakes in the world are located at plate margin , but some do occur within the plates.
Plate tectonics is the theory that Earth's outer shell is divided into __________ plates . | |||
| Right Option : C | |||
| View Explanation | |||
Which of the following disasters occur because of tectonic plates? | |||
| Right Option : D | |||
| View Explanation | |||
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