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Question
Explain the salient features of the Big Bang Theory.
Answer in Brief
Solution
According to the Big Bang Theory,
- The universe was a hot dense matter.
- 13.7 billion years ago, an explosion occurred.
- All the matter is ejected in all directions in the form of galaxies.
- The galaxies consist of stars that are held together by gravity.
- The stars explode and planets are liberated throughout the Universe.
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