GK
BIG BANG THEORY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Dense at the start, and becoming more dense
|
|
|
Dense at the start, and becoming less dense
|
|
|
Less dense at the start, and becoming more dense
|
|
|
Less dense at the start, and becoming less dense
|
Detailed explanation-1: -The Big Bang theory states that as you go back further in time, the universe gets more dense. And as you go forward in time, the universe is getting more spread out. We can “rewind the tape” and calculate that the universe was in a state of maximum density about 13.7 billion years ago.
Detailed explanation-2: -When scientists talk about the expanding universe, they mean that it has been growing ever since its beginning with the Big Bang. The galaxies outside of our own are moving away from us, and the ones that are farthest away are moving the fastest.
Detailed explanation-3: -The Short Answer: The big bang is how astronomers explain the way the universe began. It 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-and it is still stretching!
Detailed explanation-4: -The Big Bang was the moment 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began. But what caused this explosion in the first place is still a mystery.