Which of these items provide evidence supporting the Big Bang theory? Select the two correct items.(1 point)
Responses
composition of matter in the universe
composition of matter in the universe
cosmic background radiation
cosmic background radiation
rate of star formation
rate of star formation
sizes and shapes of distant galaxies
The two items that provide evidence supporting the Big Bang theory are:
- Composition of matter in the universe
- Cosmic background radiation
The composition of matter in the universe, particularly the abundance ratio of hydrogen to helium and other light elements, supports the predictions of Big Bang nucleosynthesis, which details how the first nuclei formed in the early universe.
Cosmic background radiation, also known as the Cosmic Microwave Background (CMB), is the afterglow of the Big Bang and provides strong evidence for the theory. The uniformity and slight variations in this background radiation are consistent with theoretical predictions for how the universe would have cooled after the initial expansion.