Question

What is Universe??What is Big Bang theory??​

Answer 1

Answer:

universe - all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.

big bang theory - The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

Answer 2

Explanation:

see wikipedia on google of big bang theory

i can tell only about universe

Universe

the universe consists of total physical matter and energy existing