Select the evidence that supports the big bang theory. (select 3) Evidence shows the universe is made of mostly hydrogen and helium.

ed-shifted star spectra show evidence the universe is expanding.

Evidence shows a black hole exists at the beginning of the universe.

Cosmic radiation shows evidence of an explosion.

Explanation:

Because the scientist detected that the universe is made of mostly hydrogen and helium they believe it supports the big bang theory.

The red-shifted star spectra which allow scientist to presume the speed and direction, in other words, showing evidence the universe is expanding is said to support the big bang theory.

Also, cosmic radiation in the universe is said to also show evidence of an explosion (the big bang).

However, the main question that should arise from this theory should be: "Who caused the big bang?"

so whats the answer? ?

i believe so yes mindblown