If the density of the Universe is ___ than the critical density, then the Universe will ________.
A) larger; expand forever
B) larger; eventually collapse in a "Big Crunch"
C) less; not change in size
D) less; eventually collapse in a "Big Crunch"

Question

Quizplus · Accepted Answer

The critical density is the density at which the Universe will neither expand forever nor collapse in a "Big Crunch". If the density of the Universe is less than the critical density, then the Universe will eventually collapse in a "Big Crunch".

If the Density of the Universe Is ___ Than the Critical