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NEETZoologyEvolution

How did the temperature of the universe change following the Big Bang?

Options

  1. AIt increased
  2. BIt decreased
  3. CIt remained constant
  4. DIt fluctuated

Correct answer

B. It decreased

Step-by-step solution

Galaxies contain stars and clouds of gas and dust. Considering the size of universe, earth is indeed a speck. The Big Bang theory attempts to explain to us the origin of universe. It talks of a singular huge explosion unimaginable in physical terms. The universe expanded, the temperature came down. Helium formed sometime later. The gases condensed under gravitation and formed the galaxies of the present day universe. In the solar system of the milky way galaxy, earth was supposed to have been formed about 4.5 billi

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