Which kind of star is highly unlikely to be found in the halo of ...

[bucstennis@aim.com]

Which kind of star is highly unlikely to be found in the halo of the Milky Way?
 
  A) O star B) G star C) K star D) M star

Question 2

If a radioactive isotope that was injected into your bloodstream has a half-life of 5 hours, how many hours do you have to wait before the amount of this isotope in your body is its original amount?
 
  A) 10 B) 5 C) 25 D) 20 E) 15

[manuelcastillo]

Answer to Question 1

A

Answer to Question 2

D

[bucstennis@aim.com]

Wow, this really help

[tranoy]

Thanks for the timely response, appreciate it