The average density of the outer-most layer (zone)- that is crust- of the earth is:

A. 1.2 to 5.0

B. 2.4 to 5.0

C. 2.1 to 3.0

D. 2.8 to 3.0

Answer: Option D

Solution(By Examveda Team)

The average density of the upper crust is 2.8 and that of the lower crust is 3.0. This difference in density is believed to be due to the pressure.