GENERAL KNOWLEDGE

Detailed explanation-1: -Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble’s discovery in the 1920s of a relationship between a galaxy’s distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.

Detailed explanation-2: -Big Bang Theory is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now. It is the simplest explanation for the origin of the universe which scientists claim is still expanding. Was this answer helpful?

Detailed explanation-3: -The ‘Big Bang Theory’ is a scientific theory that attempts to explain how the universe began. It is not a scientific ‘law’ because it does not explain a phenomenon that will always happen under given circumstances. It is what some scientists believe happened which caused the development of our universe.