Question

1. according to the big bang theory... the universe formed during a single event in which all matter and energy suddenly expanded from an extremely dense and hot point. each version of the universe contracts until all matter collides at a central point, then explodes outward to begin the process again with a new universe. the universe formed during a series of events in which huge amounts of matter and energy expanded from several extremely dense points. the universe has always existed in its current state, with a constant average density.

Explanation:

The Big - Bang Theory posits that the universe originated from a single, extremely dense and hot point, and then suddenly expanded. This is the widely - accepted scientific view of the universe's origin.

Answer:

The universe formed during a single event in which all matter and energy suddenly expanded from an extremely dense and hot point.