Question

which statements describe some of the original ideas proposed about the universe during the big bang? choose three correct answers. the universe was one second old. the universe was opaque. the universe expanded from a single point. the universe was very hot and dense. the universe exploded.

Explanation:

The Big Bang theory's core ideas include the universe expanding from a singularity (single point), being extremely hot and dense initially, and being opaque early on (photons couldn't travel freely until recombination). "One second old" refers to a specific epoch, not the initial state; "exploded" is a misdescription (it's expansion, not an explosion).

Answer:

The universe was opaque., The universe expanded from a single point., The universe was very hot and dense.