If a star has a parallax of 0.05, then its distance in ...

[fnuegbu]

If a star has a parallax of 0.05, then its distance in light-years is about
 
  A) 6.4 light-years.
  B) 12.7 light-years.
  C) 20 light-years.
  D) 65 light-years.
  E) 100 light-years.

Question 2

How is a technical civilization defined?
 
  A) a civilization that can avoid self-destruction for long periods
  B) a civilization that can communicate over interstellar distances
  C) a civilization that has the ability to store and process information
  D) a civilization that has developed interplanetary space travel
  E) a civilization that can construct tools out of raw materials

[welcom1000]

Answer to Question 1

D

Answer to Question 2

B