00:01
Hello, my name is john, and for this question, it asks us to which statement accurately describes the origin and expansion of the universe.
00:08
So we have a couple different statements.
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We have, as the universe continues to expand, it gradually gets warmer.
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Another statement is galaxies that are farther away are moving away more slowly.
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The third one is cosmic background radiation is left over thermal energy from the big bang.
00:26
The final choice is that stars and galaxies formed almost immediately.
00:32
After the big bang occurred.
00:34
So, based on these three parts, which statement accurately describes the origin expansion of the universe? the correct one would be the third one, cosmic background radiation, is leftover thermal energy from the big bang.
00:46
We know this.
00:47
It's been proven from the graphs and diagrams that show the different levels of energy and the concentration of the different levels of energy starting from the middle.
01:03
Decreasing as it goes outwards throughout the universe, which shows the radiation that's left over from the big band's initial point.
01:13
So let's go through the other three parts...