MCQ
Big-Bang theory attempts to explain the origin of
- AEarth
- BSolar-system
- ✓Universe
- DContenents
Origin of Universe There are several theories regarding the origin of universe but most accepted is Big-Bang theory.
Big-Bang Theory This theory was proposed by Abbe Lemaitre in $1931.$ According to the Big-Bang theory about $15$ billion years ago, cosmic matter was in a condensed form. Explosion took place which broke the condensed matter and scattered its fragments into space at an enormous velocity making a Big-Bang sound and thus the theory came to be known as the Big-Bang theory
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