Which of the following is evidence in support of Big Bang theory?
Group of answer choices
a) Blueshifting of light from all distant galaxies and cosmic background radiation detected in all directions
b) Redshifting of light from all distant galaxies and cosmic background radiation detected in all directions
c) Redshifting of light from all distant galaxies and the continued expansion of galaxies
d) Blueshifting of light from all distant galaxies and the continued expansion of galaxies
Group of answer choices
a) Blueshifting of light from all distant galaxies and cosmic background radiation detected in all directions
b) Redshifting of light from all distant galaxies and cosmic background radiation detected in all directions
c) Redshifting of light from all distant galaxies and the continued expansion of galaxies
d) Blueshifting of light from all distant galaxies and the continued expansion of galaxies
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Answer:
The earliest and most direct observational evidence of the validity of the theory are the expansion of the universe according to Hubble's law (as indicated by the redshifts of galaxies), discovery and measurement of the cosmic microwave background and the relative abundances of light elements produced by BBN.