Which is evidence of universe expansion that supports the Big Bang Theory?(1 point) Responses The temperature of the universe is the same as it was at the time of the Big Bang. The temperature of the universe is the same as it was at the time of the Big Bang. The temperature of the universe has cooled over time. The temperature of the universe has cooled over time. The temperature of the universe has cooled and warmed repeatedly over time. The temperature of the universe has cooled and warmed repeatedly over time. The temperature of the universe has warmed over time.
The temperature of the universe has cooled over time.
The correct response is: The temperature of the universe has cooled over time.
The evidence of universe expansion that supports the Big Bang Theory is the fact that the temperature of the universe has cooled over time. This evidence is known as the cosmic microwave background radiation.
To understand how this evidence supports the Big Bang Theory, we need to look back at the early stages of the universe. According to the Big Bang Theory, the universe started as a hot, dense, and extremely small point called a singularity. As the universe started expanding, the temperature decreased.
As the universe expanded and cooled, the leftover radiation from the early stages of the universe gradually shifted to lower energy levels. This radiation is now observable as the cosmic microwave background radiation, which fills the entire universe. This radiation acts as a remnant of the hot, early universe.
By studying the cosmic microwave background radiation, scientists can measure its temperature. The fact that the temperature of this radiation is relatively low, around 2.7 Kelvin (-270.45 degrees Celsius), supports the idea that the universe has been expanding and cooling over time since the Big Bang. This is a strong piece of evidence in favor of the Big Bang Theory.
Therefore, the correct response is: "The temperature of the universe has cooled over time."
Which sentence about galaxies provides evidence of universe expansion that supports the Big Bang Theory?(1 point) Responses Galaxies are moving more slowly than they have in the past. Galaxies are moving more slowly than they have in the past. Galaxies are moving at different speeds and in different directions. Galaxies are moving at different speeds and in different directions. Galaxies are in constant motion. Galaxies are in constant motion. Galaxies are moving away from each other.
Galaxies are moving away from each other.
Which provides evidence of universe expansion that supports the Big Bang Theory? Select the three correct answers.(2 points) Responses Galaxies are moving away from each other. Galaxies are moving away from each other. The universe is undergoing a cycle of contraction and expansion. The universe is undergoing a cycle of contraction and expansion. The temperature of the universe is decreasing. The temperature of the universe is decreasing. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another. An enormous amount of weak cosmic background radiation has been detected in the universe. An enormous amount of weak cosmic background radiation has been detected in the universe. The temperature of the universe is increasing.
The three correct answers are:
1. Galaxies are moving away from each other.
2. The temperature of the universe is decreasing.
3. An enormous amount of weak cosmic background radiation has been detected in the universe.