Multiple choice

Consider the following statements about Mantle:

  1. It is separated from crust by Mohorovicic discontinuity.
  2. Thickness of mantle is less than half the radius of the earth.
  3. It contains more than 80% of total volume of the earth.
  4. It is separated from core by Lehman discontinuity.

Which of the given statements are true?

  1. Only 1 and 2

  2. Only 1, 2 and 3

  3. Only 1, 2 and 4

  4. Only 1, 3 and 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mohorovicic discontinuity separates mantle from crust. Earth's mantle is a rocky shell about 2,900 km thick that constitutes about 84% of Earth's volume. Note: Earth's radius is 6,400 km Lehman discontinuity separates inner core from core.

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