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NEETZoologyEvolution

What does the Big Bang theory describe?

Options

  1. AThe formation of Earth
  2. BThe expansion of galaxies
  3. CThe origin of the universe
  4. DThe formation of stars

Correct answer

C. The origin of the universe

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 and hence, the temperature came down. Hydrogen and 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 bee

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