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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.

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 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.

The temperature of the universe is increasing.
The temperature of the universe is increasing.

The temperature of the universe is decreasing.

1 answer

The three correct answers that provide evidence of universe expansion supporting the Big Bang Theory are:

  1. Galaxies are moving away from each other.
  2. An enormous amount of weak cosmic background radiation has been detected in the universe.
  3. The temperature of the universe is decreasing.

The first answer relates to the observation of redshift, which indicates that galaxies are receding from one another, consistent with an expanding universe. The second answer refers to the Cosmic Microwave Background (CMB) radiation, a relic from the early universe that provides strong evidence for the Big Bang. The third response about the temperature of the universe decreasing aligns with the predictions of the Big Bang Theory, as the universe expands, it cools over time.