Why will it be hard to determine the nature of Venus' interior? ...

[robinn137]

Why will it be hard to determine the nature of Venus' interior?
 
  A) No orbiter has been able to find the exact mass of Venus.
  B) No seismograph can last long enough at Venus' temperatures to pick up quakes.
  C) No photos have ever been returned from Venus' surface.
  D) The clouds prevent us from finding the exact diameter and volume of Venus.
  E) The magnetic field of Venus is much stronger than our own.

Question 2

The rings of Neptune:
 
  A) were confirmed by the Voyager 2 in 1989.
  B) number five, with three narrow, two more diffuse.
  C) all lie within Neptune's Roche Limit.
  D) often appear as clumpy ring arcs, rather than complete and symmetrical.
  E) All of these are correct.

[Sassygurl126]

Answer to Question 1

B

Answer to Question 2

E

[robinn137]

TYSM

[jojobee318]

Gracias!