With the understanding of differentiation, which layer of Earth ...

[berenicecastro]

With the understanding of differentiation, which layer of Earth would be the densest?
 
  a. lithosphere
 b. core
 c. crust
 d. hydrosphere
  e. mantle

Question 2

To determine the structure of the interior of a star, astronomers must balance density, luminosity, and ____.
 
  a. mass
 b. temperature
 c. mass and temperature
 d. mass and opacity
 e. temperature and opacity

[Perkypinki]

Answer to Question 1

b

Answer to Question 2

c

[berenicecastro]

Excellent

[hramirez205]

Wow, this really help