The cores of the Moon and Mercury are similar in that A) both ...

[berenicecastro]

The cores of the Moon and Mercury are similar in that
 
  A) both cores are more iron rich than the rest of the body and the core is solid throughout.
  B) both cores are large in proportion to the object with a solid inner core and fluid outer core.
  C) both cores are more iron rich than the rest of the body, with a solid inner core and fluid outer core.
  D) both cores are small in proportion to the object, with a fluid inner core and solid outer core.

Question 2

According to Newton, the gravity of the ________ is needed to explain planetary orbits.
 
  Fill in the blank(s) with correct word

[mammy1697]

Answer to Question 1

C

Answer to Question 2

Sun

[berenicecastro]

Excellent

[matt95]

Gracias!