What type of evidence does cosmic background radiation provide about the origins of the universe?(1 point)
A. It proves that the universe is expanding.
B. It supports predictions of the composition of the early universe.
C. It verifies that the early universe was once extremely hot.
D. It pinpoints the size of the original universe.
C. It verifies that the early universe was once extremely hot.
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Three pieces of evidence of universe expansion support the Big Bang Theory. The first piece of evidence, which Edwin Hubble discovered, is that Response area. The second piece of evidence is the change in universal temperature. The temperature Response area . The third piece of evidence is that Cosmic Microwave Background radiation is found Response area.
wrong one
The correct answer is C. Cosmic background radiation provides evidence that the early universe was once extremely hot.
To understand how this evidence supports the origins of the universe, it's important to know what cosmic background radiation is. Cosmic background radiation is a faint electromagnetic radiation that pervades the entire universe. It is the remnant of the thermal radiation that filled the early universe when it was in a highly dense and hot state.
The discovery of cosmic background radiation in 1965 by Arno Penzias and Robert Wilson provided strong support for the Big Bang theory – the leading explanation for the origins of the universe. The Big Bang theory suggests that the universe originated from a singularity, an extremely hot and dense point, around 13.8 billion years ago. As the universe expanded from this hot and dense state, it cooled down, and photons of the thermal radiation became stretched out to longer wavelengths, forming the cosmic background radiation we detect today.
Therefore, the presence of cosmic background radiation serves as confirmation that the early universe was indeed in a state of extreme heat. It provides strong evidence for the Big Bang theory and supports the understanding of how the universe originated and evolved over time.