2. Solved Papers
  3. Railways

Railways R.R.C. (Patna) Solved Paper Held on 1st Shift 2-11-2014

  • question_answer
    The lower layer of the Earth's crust is called?

    A) Mica                            

    B) Sial

    C) Sima                            

    D) Sigma

    Correct Answer: D

    Solution :

    Sigma is the lower layer of Earth's crust which made of rocks rich in magnesium silicate minerals.


You need to login to perform this action.
You will be redirected in 3 sec spinner