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Discussion :: Lithosphere

  1. Which of the following are correctly matched?
    1. Gneiss : Metamorphic
    2. Granite : Igneous
    3. Sandstone : Sedimentary

    2. A.

     1 only
    B.

     1 and 2
    C.

     2 and 3
    D.

     1, 2 and 3

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    Answer : Option D

    Explanation :

    All the three are correctly matched. Gneiss : Metamorphic. Gneiss is formed by high temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Granite : Igneous. Granite is a light-colored igneous rock with grains large enough to be visible with the unaided eye. Sandstone : Sedimentary. Sandstone is a clastic sedimentary rock composed mainly of sand-sized mineral particles or rock fragments.

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