GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Red Shift
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absorption lines
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radiation
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cosmic microwave background radiation
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Detailed explanation-1: -What evidence is there to support the Big Bang theory? Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble’s discovery in the 1920s of a relationship between a galaxy’s distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.
Detailed explanation-2: -One is the fact that the universe is expanding, proven with something called red-shift. The second is something called cosmic microwave background radiation. The third is the abundance of different elements in the universe.
Detailed explanation-3: -The cosmic microwave background radiation and the cosmological redshift-distance relation are together regarded as the best available evidence for the Big Bang event. Measurements of the CMB have made the inflationary Big Bang model the Standard Cosmological Model.
Detailed explanation-4: -Key observations supporting the big bang theory include: (1) expansion of the universe, (2) cosmic microwave background radiation, (3) abundances of the lightest chemical elements, and (4) age of the oldest-known stars.