Where is probably the best place to find life on Mars today? ...

[imanialler]

Where is probably the best place to find life on Mars today?
 
  A) inside craters that used to be filled with water
  B) in the Mariner Valley
  C) in the residual polar caps
  D) in geologically active areas like Tharsis where subsurface water may exist

Question 2

If you draw a spacetime diagram, the worldline of an object that is stationary in your reference frame is
 
  A) vertical.
  B) horizontal.
  C) slanted.
  D) curved.
  E) a circle.

[Ksh22]

Answer to Question 1

D

Answer to Question 2

A