ESS
Grade-10
Easy

Question

Select the false statement.

  1. The asthenosphere present below the lithosphere.
  2. The asthenosphere is mechanically strong.
  3. Outer core comprises of nickel, iron in liquid state.
  4. Gutenberg Discontinuity lies between the mantle and the outer core.

hintHint:

Asthenosphere is not mechanically strong

The correct answer is: The asthenosphere is mechanically strong.


    • The asthenosphere present below the lithosphere.
    • Outer core comprises of nickel, iron in liquid state.
    • Gutenberg discontinuity lies between the mantle and the outer core.
    • But asthenosphere is the weak and easily deformed layer of the Earth that acts as a “lubricant” for the tectonic plates to slide over. 
    • So, the correct option is b.

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