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SSC Sample Paper SSC (Group-C) Sample Test Paper-1

  • question_answer
    Earth is made up of more than 100 different elements. Arrange the following four important elements in order of their importance (High to Low) which constitute in the composition of Earth:

    A)  Oxygen, Aluminium, Silicon, Iron

    B)  Oxygen. Silicon, Iron, Aluminium

    C)  Oxygen. Iron, Aluminium, Silicon

    D)  Oxygen, Silicon, Aluminium, Iron  

    Correct Answer: D

    Solution :

     The most important minerals (in percentage terms) that constitute the Earth are: Oxygen (46.6 %), Silicon (27.7 %). Aluminium (8.1 %), Iron (5.0%), Calcium (3.6 %), Sodium (2.8 %), Potassium (2.6 %) and Magnesium (2.1 %).


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