In the Big Bang, about 75 of the normal matter by mass was ...

[armygirl]

In the Big Bang, about 75 of the normal matter by mass was hydrogen atoms, and the other 25 almost entirely helium.
 
  Indicate whether the statement is true or false

Question 2

The distinguishing feature of a starburst galaxy is ________.
 
  A) strong radio emission from lobes of material well outside the visible boundaries of the galaxy
  B) a very large luminosity compared to the total luminosity of the Milky Way
  C) a rate of star formation that may be 100 or more times greater than that in the Milky Way
  D) the presence of an unusually large number of binary star systems containing X-ray bursters

[Tabitha_2016]

Answer to Question 1

TRUE

Answer to Question 2

C

[armygirl]

Thanks for the timely response, appreciate it

[cassie_ragen]

Great answer, keep it coming