If we compress the entire history of the universe into one year, ...

[Lisaclaire]

If we compress the entire history of the universe into one year, modern humans evolved
 
  A) at 9 PM on New Year's Eve
  B) at midnight on New Year's Eve
  C) a couple of minutes before midnight on New Year's Eve
  D) a few seconds before midnight on New Year's Eve

Question 2

The characteristic that distinguishes fermions from bosons is
 
  A) their mass.
  B) their electric charge.
  C) their spin.
  D) their size.
  E) their speed of travel.

[reelove4eva]

Answer to Question 1

C

Answer to Question 2

C

[Lisaclaire]

Thanks for the timely response, appreciate it

[tranoy]

Gracias!