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!

Ibelieve the answer is c. map projections.hope my answer has you : )