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STD 8 TERM 1 SOCIAL ROCKS AND SOILS KAHOOT GAME BY R.GOPINATH TAMILNADU INDIA

ROCKS
The rocks are the solid mineral materials forming a part of the surface of the earth and other similar planets.

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Rocks are classified into three types as follows :

  1. Igneous Rocks
  2. Sedimentary Rocks
  3. Metamorphic Rocks
Igneous Rocks :
The igneous rocks are formed by the solidification of molten magma.
Sedimentary Rocks :
The sedimentary rocks are formed by the sediments derived and deposited by various agents.
Metamorphic Rocks :
When Igneous and sedimentary rocks subject to high temperature and pressure, the original  rocks get altered to form a new kind of rock called metamorphic rocks.

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