Which statements describe some of the original ideas proposed about the universe during the big bang? Check all that apply.The universe exploded.The universe was opaque.The universe was one second old.The universe was very hot and dense.The universe expanded from a single point.

The Big Bang model describes the early universe as extremely hot and dense, and the early universe was opaque because light could not travel freely through it. It also proposes that the universe expanded from an initially very compact state, often described in introductory accounts as a single point. The Big Bang was not an explosion into empty space, and the universe was not only one second old overall.

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