Multiple Choice
Cosmological redshift is redshift due to
A) the true velocity of a receding galaxy.
B) the cosmic microwave background radiation.
C) the expansion of the space that light travels through.
D) the higher abundance of hydrogen present in older galaxies.
E) light interacting with dark matter.
Correct Answer:

Verified
Correct Answer:
Verified
Q39: Sailors could claim the distribution of islands
Q40: Describe the two assumptions regarding the universe
Q41: Why is the "recombination" term used to
Q42: As measured from Earth, the spectrum of
Q43: Galaxies move away from us in all
Q45: Which of the following would be the
Q46: What important event in the universe's early
Q47: You observe the following three galaxies and
Q48: What do astronomers mean when they say
Q49: A galaxy is measured to have a