Q147
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
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
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.