In the 1960s, Maarten Schmidt determined that quasars were very ...

[HCHenry]

In the 1960s, Maarten Schmidt determined that quasars were very distant objects by
 
  A) determining how luminous they were.
  B) determining how small the source of light was from its variations in luminosity.
  C) discovering that they were embedded in distant galaxies.
  D) determining their redshifts.
  E) determining their parallax angles.

Question 2

The average length of a solar day is
 
  A) 23 hours 56 minutes.
  B) 24 hours.
  C) 365.25 days.
  D) 12 years.
  E) 26,000 years.

[Galvarado142]

Answer to Question 1

D

Answer to Question 2

B

[HCHenry]

TY

[Galvarado142]

You're welcome