time 01/18/2018 11:29
date 01/01/1970 00:00
Fin = 01/18/2018 11:39
How fast is the speed of light?

  300000 mph
  300000 kilometers per second
  300000 meters per second
  300000 light years
  300 mph

                 



Rating Apprentice grade 1       Level (4)       Time 00:00
Mike Robinson