Redshift, cosmic microwave, background radiation
and the amount of hydrogen in the universe
all indicate that the universe is

a) rotating.
b) expanding.
c) shrinking.
d) at equilibrium

~Hello there! ^_^

Your question: Redshift, cosmic microwave, background radiation and the amount of hydrogen in the universe. All indicate that the universe is..?

Your Redshift, cosmic microwave, background radiation and the amount of hydrogen in the universe. All indicate that the universe is expanding.

The answer is option B.

Hope this helps!

The correct answer is kettles.

Sonar is an application of the doppler effect used by submarines.  this test was on k12.