Multiple choice

Which of the following is the not the postulates of Big Bang theory?

  1. All the matter forming the universe existed in the form of a tiny ball

  2. The expansion of the universe even works today

  3. Large number of small “planetesimals” aggregate to form planets

  4. All of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

According to modern cosmological models and the Big Bang theory, matter existed in a tiny ball (singularity) and expansion continues today. Planetisimals aggregating to form planets describes the nebular hypothesis of solar system formation, not a postulate of the Big Bang theory.

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