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Railways Sample Paper RRB (Group D) Sample Test Paper-15

  • question_answer
    The three abundant elements in the earths crust are Aluminium, oxygen and silicon. The correct order of their abundance is-

    A)  Oxygen, aluminium, silicon

    B)  Aluminium, silicon, oxygen

    C)  Oxygen, silicon, aluminium

    D)  Silicon, oxygen, aluminium

    Correct Answer: D

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