Which provides evidence of universe expansion that supports the Big Bang theory? Select the three correct answers.
a. Galaxies are moving away from each other
b. The temperature of the universe is increasing
c. The temperature of the universe is decreasing
d. An enormous amount of weak cosmic background radiation has been detected in the universe
e. The universe is undergoing a cycle of contraction and expansion
f. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another
The correct answers are:
a. Galaxies are moving away from each other
d. An enormous amount of weak cosmic background radiation has been detected in the universe
f. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another
The three correct answers that provide evidence of universe expansion supporting the Big Bang theory are:
a. Galaxies are moving away from each other
d. An enormous amount of weak cosmic background radiation has been detected in the universe
f. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another
To determine which provides evidence of universe expansion that supports the Big Bang theory, we need to evaluate each of the given options:
a. Galaxies are moving away from each other: This is correct. The observation of galaxies moving away from each other supports the idea that the universe is expanding.
b. The temperature of the universe is increasing: This is incorrect. The temperature of the universe is not increasing as evidence for the Big Bang theory. In fact, the temperature of the universe has been steadily decreasing since the Big Bang.
c. The temperature of the universe is decreasing: This is correct. The observed decrease in temperature of the universe aligns with the cooling down since the Big Bang.
d. An enormous amount of weak cosmic background radiation has been detected in the universe: This is correct. The detection of cosmic background radiation, specifically the Cosmic Microwave Background (CMB) radiation, strongly supports the Big Bang theory.
e. The universe is undergoing a cycle of contraction and expansion: This is incorrect. The concept of a cyclical universe is not supported by the Big Bang theory.
f. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another: This is incorrect. The Cosmic Microwave Background radiation is observed to have a very uniform temperature across different regions of the universe, providing further evidence for the Big Bang theory.
Therefore, the three correct answers that provide evidence of universe expansion supporting the Big Bang theory are:
a. Galaxies are moving away from each other
c. The temperature of the universe is decreasing
d. An enormous amount of weak cosmic background radiation has been detected in the universe