NextMockपरीक्षा शोधा, उदा. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · प्रश्न 38

The Earth's inner layer NIFE is rich in which elements?

  1. Silica and magnesium
  2. Basalt and silica
  3. Nickel and ferrum (iron)
  4. Silica and aluminium
  5. None of the above / More than one of the above
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (C) Nickel and ferrum (iron)

स्पष्टीकरण

Suess's layers: SIAL (crust), SIMA (mantle), NIFE (core of nickel and iron).

  • (A) चूक

    Wrong: that is SIMA.

  • (B) चूक

    Wrong: basalt is a rock, not an element.

  • (C) बरोबर

    Correct: NIFE = Nickel + Ferrum.

  • (D) चूक

    Wrong: that is SIAL.

  • (E) चूक

    Wrong: only one of the options A–D is correct.