GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All the stars we observe from Earth emit light that is shifted, to varying degrees, to longer wavelengths. This evidence is used to support the Big Bang Theory because it shows that stars we observe-
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are all older than our Sun.
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are made up of helium gas.
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use nuclear fusion to make light.
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are moving away from us.
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Explanation:
Detailed explanation-1: -Simply put, it says the universe as we know it started with an infinitely hot and dense single point that inflated and stretched-first at unimaginable speeds, and then at a more measurable rate-over the next 13.7 billion years to the still-expanding cosmos that we know today.
Detailed explanation-2: -The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background", or CMB.
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