tayshafrank16
contestada

Which of the following has not yet been proven but will add support to the Big Bang Theory if true?

The universe is expanding

Overall density of ordinary matter must be roughly 4% of critical density

There is an abundance of the light elements H, He, Li

There is a widespread cosmic microwave background radiation

Respuesta :

Redshift shows that the universe is expanding, so that is already true.

I don't know anything about B

I'm pretty sure C is already true

And D has already been proven as fact.

I would go with B, but correct me if I'm wrong.

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