Q. Which of the following is known as most dense layer of the earth? Answer:
Core
Notes: Core is the densest layer of the earth. The density of the core ranges from 9.5 to 14.5 and sometimes even higher. (13g/cm3)
The density of Mantle varies from 3.3 to 5.7 (3.4 gm/cm3)
Density of crust varies from 2.70 to 2.95 (3g/cm3)