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  9. Q18

RRB NTPC 2021 · Question 18 of 131

Which is the outermost part of the earth?

  1. AMantle
  2. BCore
  3. CCrustCorrect
  4. DAsthenosphere

Answer: C. Crust

Explanation

The outer layer of the Earth is called the crust. This is the solid layer of the Earth. This layer is formed by the solidification of the molten lava and so the rocks contain silicate and alumininum.

Source: RRB NTPC 2021 CBT 1 Previous Year Paper (3 Feb) — ixambee compilation with answer key · reliable-secondary

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