NextMockપરીક્ષાઓ શોધો, દા.ત. SSC CGL, UPPSC, Lekhpal
State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · પ્રશ્ન 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
જવાબ બતાવો અને સમજૂતી

જવાબ: (C) Nickel and ferrum (iron)

સમજૂતી

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

  • (A) ખોટો

    Wrong: that is SIMA.

  • (B) ખોટો

    Wrong: basalt is a rock, not an element.

  • (C) સાચો

    Correct: NIFE = Nickel + Ferrum.

  • (D) ખોટો

    Wrong: that is SIAL.

  • (E) ખોટો

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