Question

Red shift

cosmic microwave background radiation
the amount of hydrogen in the universe

All indicate that the universe is
A) rotating.
B) expanding.
C) shrinking.
D) at equilibrium.

Answer 1

expanding.

Step-by-step explanation:

Both the cosmic microwave background radiation and the amount of hydrogen in the universe provide evidence that the universe is expanding. The observed redshift of distant galaxies, along with the distribution of hydrogen and the patterns in the cosmic microwave background radiation, support the idea that the universe is undergoing a process of expansion. This concept is a key element of the Big Bang theory of the universe's origin and evolution.