Multiple choice

Which of the following is/are correct?

  1. The average specific gravity of the earth is more than the average specific gravity of the crust.
  2. On the basis of mechanical properties, the earth can be divided into crust, mantle and core.

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Density of the layers of the earth: Continental Crust: 2.7 to 3.0 gm/ cm3 Oceanic Crust: 3.0 to 3.3 gm/ cm3 Average density of the earth: 5.5 gm/ cm3 The earth can be divided into crust, mantle and core on the basis of its chemical composition.

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