The planet ________ has the least variation in temperatures on ...

[roselinechinyere27m]

The planet ________ has the least variation in temperatures on the surface between day and night.
 
  A) Mars B) Earth C) Mercury D) Venus

Question 2

Stellar masses are measured directly by observations of the motions of
 
  A) spectroscopic binary systems.
  B) visual binary systems.
  C) eclipsing binary systems.
  D) All of the above can give us their masses.
  E) Stellar masses cannot be measured directly by any method.

[at]

Answer to Question 1

D

Answer to Question 2

D

[roselinechinyere27m]

Thanks for the timely response, appreciate it

[Joy Chen]

Gracias!