GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the fate of the universe that will expand forever, but more slowly over time, eventually stop expanding when infinite time is reached?
A
Big Rip
B
Big Crunch
C
Big Freeze
D
None of the above
Explanation: 

Detailed explanation-1: -The Universe will expand forever: If the mean density is less than the critical density, then there is insufficient mass within the universe to stop the expansion-the universe will expand forever. Ultimately, the galaxies will move increasingly further apart.

Detailed explanation-2: -If the Universe holds enough matter, including dark matter, the combined gravitational attraction of everything will gradually halt this expansion and precipitate the ultimate collapse. Over time, galaxies, then individual stars, will smash into each other more frequently, killing off any life on nearby planets.

Detailed explanation-3: -Big Chill, Big Crunch or Big Rip-the future of the Universe depends on the properties of dark energy and whether or not it will be able to resist the attractive force of gravity.

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