GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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all the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang
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The universe back then could not sustain life, and it cannot sustain life now
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the universe was extremely hot then, and it is still extremely hot not
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the universe began expanding then, and it is still expanding today
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Detailed explanation-1: -Origins. In the first moments after the Big Bang, the universe was extremely hot and dense. As the universe cooled, conditions became just right to give rise to the building blocks of matter – the quarks and electrons of which we are all made.
Detailed explanation-2: -"The universe was expanding, and as it expanded, it got cooler and less dense, ‘’ David Spergel, a theoretical astrophysicist at Princeton University in Princeton, N.J., told SPACE.com. After inflation, the universe continued to grow, but at a slower rate. As space expanded, the universe cooled and matter formed.
Detailed explanation-3: -The Era of Recombination Until around a few hundred million years or so after the Big Bang, the universe was a very dark place. There were no stars, and there were no galaxies. After the Big Bang, the universe was like a hot soup of particles (i.e. protons, neutrons, and electrons).