Railways Sample Paper RRB (Assistant Loco Pilot) 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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